RHSA-2018_2607
Vulnerability from csaf_redhat - Published: 2018-09-04 06:24 - Updated: 2024-11-14 23:45Summary
Red Hat Security Advisory: Red Hat Gluster Storage security, bug fix, and enhancement update
Severity
Important
Notes
Topic: Updated glusterfs packages that fix multiple security issues and bugs, and add various enhancements are now available for Red Hat Gluster Storage 3.4 on Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: GlusterFS is a key building block of Red Hat Gluster Storage. It is based on a stackable user-space design and can deliver exceptional performance for diverse workloads. GlusterFS aggregates various storage servers over network interconnections into one large, parallel network file system.
Security Fix(es):
* glusterfs: Unsanitized file names in debug/io-stats translator can allow remote attackers to execute arbitrary code (CVE-2018-10904)
* glusterfs: Stack-based buffer overflow in server-rpc-fops.c allows remote attackers to execute arbitrary code (CVE-2018-10907)
* glusterfs: I/O to arbitrary devices on storage server (CVE-2018-10923)
* glusterfs: Device files can be created in arbitrary locations (CVE-2018-10926)
* glusterfs: File status information leak and denial of service (CVE-2018-10927)
* glusterfs: Improper resolution of symlinks allows for privilege escalation (CVE-2018-10928)
* glusterfs: Arbitrary file creation on storage server allows for execution of arbitrary code (CVE-2018-10929)
* glusterfs: Files can be renamed outside volume (CVE-2018-10930)
* glusterfs: Improper deserialization in dict.c:dict_unserialize() can allow attackers to read arbitrary memory (CVE-2018-10911)
* glusterfs: remote denial of service of gluster volumes via posix_get_file_contents function in posix-helpers.c (CVE-2018-10914)
* glusterfs: Information Exposure in posix_get_file_contents function in posix-helpers.c (CVE-2018-10913)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Red Hat would like to thank Michael Hanselmann (hansmi.ch) for reporting these issues.
Additional Changes:
These updated glusterfs packages include numerous bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Gluster Storage 3.4 Release Notes for information on the most significant of these changes:
https://access.redhat.com/site/documentation/en-US/red_hat_gluster_storage/3.4/html/3.4_release_notes/
All users of Red Hat Gluster Storage are advised to upgrade to these updated packages, which provide numerous bug fixes and enhancements.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
It was found that glusterfs server does not properly sanitize file paths in the "trusted.io-stats-dump" extended attribute which is used by the "debug/io-stats" translator. An attacker can use this flaw to create files and execute arbitrary code. To exploit this, the attacker would require sufficient access to modify the extended attributes of files on a gluster volume.
6.8 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2018:2607
Workaround
To limit exposure of gluster server nodes :
1. gluster server should be on LAN and not reachable from public networks.
2. Use gluster auth.allow and auth.reject.
3. Use TLS certificates to authenticate gluster clients.
caveat: This does not protect from attacks against authenticated gluster clients.
It was found that glusterfs server is vulnerable to mulitple stack based buffer overflows due to functions in server-rpc-fopc.c allocating fixed size buffers using 'alloca(3)'. An authenticated attacker could exploit this by mounting a gluster volume and sending a string longer that the fixed buffer size to cause crash or potential code execution.
6.8 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2018:2607
Workaround
To limit exposure of gluster server nodes :
1. gluster server should be on LAN and not reachable from public networks.
2. Use gluster auth.allow and auth.reject.
3. Use TLS certificates to authenticate gluster clients.
caveat: This does not protect from attacks by authenticated gluster clients.
A flaw was found in dict.c:dict_unserialize function of glusterfs, dic_unserialize function does not handle negative key length values. An attacker could use this flaw to read memory from other locations into the stored dict value.
6.5 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2018:2607
An information disclosure vulnerability was discovered in glusterfs server. An attacker could issue a xattr request via glusterfs FUSE to determine the existence of any file.
CWE-209 - Generation of Error Message Containing Sensitive Information
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2018:2607
Workaround
SELinux mitigates this issue on Red Hat Gluster Storage 3. SELinux should be in enforcing mode only as permissive mode does not block attacks.
It was found that an attacker could issue a xattr request via glusterfs FUSE to cause gluster brick process to crash which will result in a remote denial of service. If gluster multiplexing is enabled this will result in a crash of multiple bricks and gluster volumes.
5.5 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2018:2607
Workaround
SELinux mitigates this issue on Red Hat Gluster Storage 3. SELinux should be in enforcing mode only as permissive mode does not block attacks.
It was found that the "mknod" call derived from mknod(2) can create files pointing to devices on a glusterfs server node. An authenticated attacker could use this to create an arbitrary device and read data from any device attached to the glusterfs server node.
6.8 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2018:2607
Workaround
To limit exposure of gluster server nodes :
1. gluster server should be on LAN and not reachable from public networks.
2. Use gluster auth.allow and auth.reject.
3. Use TLS certificates to authenticate gluster clients.
caveat: This does not protect from attacks by authenticated gluster clients.
A flaw was found in RPC request using gfs3_mknod_req supported by glusterfs server. An authenticated attacker could use this flaw to write files to an arbitrary location via path traversal and execute arbitrary code on a glusterfs server node.
6.8 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2018:2607
Workaround
To limit exposure of gluster server nodes :
1. gluster server should be on LAN and not reachable from public networks.
2. Use gluster auth.allow and auth.reject.
3. Use TLS certificates to authenticate gluster clients.
caveat: This does not protect from attacks by authenticated gluster clients.
A flaw was found in RPC request using gfs3_lookup_req in glusterfs server. An authenticated attacker could use this flaw to leak information and execute remote denial of service by crashing gluster brick process.
6.8 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2018:2607
Workaround
To limit exposure of gluster server nodes :
1. gluster server should be on LAN and not reachable from public networks.
2. Use gluster auth.allow and auth.reject.
3. Use TLS certificates to authenticate gluster clients.
caveat: This does not protect from attacks by authenticated gluster clients.
A flaw was found in RPC request using gfs3_symlink_req in glusterfs server which allows symlink destinations to point to file paths outside of the gluster volume. An authenticated attacker could use this flaw to create arbitrary symlinks pointing anywhere on the server and execute arbitrary code on glusterfs server nodes.
6.8 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2018:2607
Workaround
To limit exposure of gluster server nodes :
1. gluster server should be on LAN and not reachable from public networks.
2. Use gluster auth.allow and auth.reject.
3. Use TLS certificates to authenticate gluster clients.
caveat: This does not protect from attacks by authenticated gluster clients.
A flaw was found in RPC request using gfs2_create_req in glusterfs server. An authenticated attacker could use this flaw to create arbitrary files and execute arbitrary code on glusterfs server nodes.
6.8 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2018:2607
Workaround
To limit exposure of gluster server nodes :
1. gluster server should be on LAN and not reachable from public networks.
2. Use gluster auth.allow and auth.reject.
3. Use TLS certificates to authenticate gluster clients.
caveat: This does not protect from attacks by authenticated gluster clients.
A flaw was found in RPC request using gfs3_rename_req in glusterfs server. An authenticated attacker could use this flaw to write to a destination outside the gluster volume.
6.8 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2018:2607
Workaround
To limit exposure of gluster server nodes :
1. gluster server should be on LAN and not reachable from public networks.
2. Use gluster auth.allow and auth.reject.
3. Use TLS certificates to authenticate gluster clients.
caveat: This does not protect from attacks by authenticated gluster clients.
References
Acknowledgments
hansmi.ch
Michael Hanselmann
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"title": "Vulnerability description"
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"text": "glusterfs: Unsanitized file names in debug/io-stats translator can allow remote attackers to execute arbitrary code",
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"title": "Statement"
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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{
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"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "glusterfs: Unsanitized file names in debug/io-stats translator can allow remote attackers to execute arbitrary code"
},
{
"acknowledgments": [
{
"names": [
"Michael Hanselmann"
],
"organization": "hansmi.ch"
}
],
"cve": "CVE-2018-10907",
"cwe": {
"id": "CWE-121",
"name": "Stack-based Buffer Overflow"
},
"discovery_date": "2018-07-17T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1601642"
}
],
"notes": [
{
"category": "description",
"text": "It was found that glusterfs server is vulnerable to mulitple stack based buffer overflows due to functions in server-rpc-fopc.c allocating fixed size buffers using \u0027alloca(3)\u0027. An authenticated attacker could exploit this by mounting a gluster volume and sending a string longer that the fixed buffer size to cause crash or potential code execution.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "glusterfs: Stack-based buffer overflow in server-rpc-fops.c allows remote attackers to execute arbitrary code",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue did not affect Red Hat Enterprise Linux 6 and 7 as the flaw is present in glusterfs-server, which is not shipped there.\n\nThis flaw affects glusterfs versions included in Red Hat Virtualization 4 Hypervisor. However, in recommended configurations, the vulnerability is only exposed to hypervisor administrators and can not be exploited from virtual machines or other hosts on the network. For Red Hat Virtualization, Product Security has rated this flaw as Moderate. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2018-10907"
},
{
"category": "external",
"summary": "RHBZ#1601642",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1601642"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2018-10907",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-10907"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-10907",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10907"
}
],
"release_date": "2018-09-04T05:30:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2018-09-04T06:24:50+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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{
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"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "glusterfs: Stack-based buffer overflow in server-rpc-fops.c allows remote attackers to execute arbitrary code"
},
{
"acknowledgments": [
{
"names": [
"Michael Hanselmann"
],
"organization": "hansmi.ch"
}
],
"cve": "CVE-2018-10911",
"cwe": {
"id": "CWE-200",
"name": "Exposure of Sensitive Information to an Unauthorized Actor"
},
"discovery_date": "2018-07-17T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1601657"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in dict.c:dict_unserialize function of glusterfs, dic_unserialize function does not handle negative key length values. An attacker could use this flaw to read memory from other locations into the stored dict value.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "glusterfs: Improper deserialization in dict.c:dict_unserialize() can allow attackers to read arbitrary memory",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw affects glusterfs versions included in Red Hat Virtualization 4 Hypervisor. However, in recommended configurations, the vulnerability is only exposed to hypervisor administrators and can not be exploited from virtual machines or other hosts on the network. For Red Hat Virtualization, Product Security has rated this flaw as Moderate. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2018-10911"
},
{
"category": "external",
"summary": "RHBZ#1601657",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1601657"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2018-10911",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-10911"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-10911",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10911"
}
],
"release_date": "2018-09-04T05:30:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2018-09-04T06:24:50+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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},
"url": "https://access.redhat.com/errata/RHSA-2018:2607"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.0"
},
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],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "glusterfs: Improper deserialization in dict.c:dict_unserialize() can allow attackers to read arbitrary memory"
},
{
"acknowledgments": [
{
"names": [
"Michael Hanselmann"
],
"organization": "hansmi.ch"
}
],
"cve": "CVE-2018-10913",
"cwe": {
"id": "CWE-209",
"name": "Generation of Error Message Containing Sensitive Information"
},
"discovery_date": "2018-07-23T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1607618"
}
],
"notes": [
{
"category": "description",
"text": "An information disclosure vulnerability was discovered in glusterfs server. An attacker could issue a xattr request via glusterfs FUSE to determine the existence of any file.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "glusterfs: Information Exposure in posix_get_file_contents function in posix-helpers.c",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue did not affect Red Hat Enterprise Linux 6 and 7 as the flaw is present in glusterfs-server, which is not shipped there.\n\nThis flaw affects glusterfs versions included in Red Hat Virtualization 4 Hypervisor. However, in recommended configurations, the vulnerability is only exposed to hypervisor administrators and can not be exploited from virtual machines or other hosts on the network.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2018-10913"
},
{
"category": "external",
"summary": "RHBZ#1607618",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1607618"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2018-10913",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-10913"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-10913",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10913"
}
],
"release_date": "2018-09-04T05:30:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2018-09-04T06:24:50+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"restart_required": {
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},
"url": "https://access.redhat.com/errata/RHSA-2018:2607"
},
{
"category": "workaround",
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{
"cvss_v3": {
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"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.5,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"version": "3.0"
},
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"threats": [
{
"category": "impact",
"details": "Low"
}
],
"title": "glusterfs: Information Exposure in posix_get_file_contents function in posix-helpers.c"
},
{
"acknowledgments": [
{
"names": [
"Michael Hanselmann"
],
"organization": "hansmi.ch"
}
],
"cve": "CVE-2018-10914",
"cwe": {
"id": "CWE-476",
"name": "NULL Pointer Dereference"
},
"discovery_date": "2018-07-23T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1607617"
}
],
"notes": [
{
"category": "description",
"text": "It was found that an attacker could issue a xattr request via glusterfs FUSE to cause gluster brick process to crash which will result in a remote denial of service. If gluster multiplexing is enabled this will result in a crash of multiple bricks and gluster volumes.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "glusterfs: remote denial of service of gluster volumes via posix_get_file_contents function in posix-helpers.c",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue did not affect Red Hat Enterprise Linux 6 and 7 as the flaw is present in glusterfs-server, which is not shipped there.\n\nThis flaw affects glusterfs versions included in Red Hat Virtualization 4 Hypervisor. However, in recommended configurations, the vulnerability is only exposed to hypervisor administrators and can not be exploited from virtual machines or other hosts on the network.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2018-10914"
},
{
"category": "external",
"summary": "RHBZ#1607617",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1607617"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2018-10914",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-10914"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-10914",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10914"
}
],
"release_date": "2018-09-04T05:30:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2018-09-04T06:24:50+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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},
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},
{
"category": "workaround",
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"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"version": "3.0"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "glusterfs: remote denial of service of gluster volumes via posix_get_file_contents function in posix-helpers.c"
},
{
"acknowledgments": [
{
"names": [
"Michael Hanselmann"
],
"organization": "hansmi.ch"
}
],
"cve": "CVE-2018-10923",
"cwe": {
"id": "CWE-20",
"name": "Improper Input Validation"
},
"discovery_date": "2018-07-30T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1610659"
}
],
"notes": [
{
"category": "description",
"text": "It was found that the \"mknod\" call derived from mknod(2) can create files pointing to devices on a glusterfs server node. An authenticated attacker could use this to create an arbitrary device and read data from any device attached to the glusterfs server node.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "glusterfs: I/O to arbitrary devices on storage server",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue did not affect Red Hat Enterprise Linux 6 and 7 as the flaw is present in glusterfs-server, which is not shipped there.\n\nThis flaw affects glusterfs versions included in Red Hat Virtualization 4 Hypervisor. However, in recommended configurations, the vulnerability is only exposed to hypervisor administrators and can not be exploited from virtual machines or other hosts on the network. For Red Hat Virtualization, Product Security has rated this flaw as Moderate. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2018-10923"
},
{
"category": "external",
"summary": "RHBZ#1610659",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1610659"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2018-10923",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-10923"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-10923",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10923"
}
],
"release_date": "2018-09-04T05:30:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2018-09-04T06:24:50+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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},
{
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{
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"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "glusterfs: I/O to arbitrary devices on storage server"
},
{
"acknowledgments": [
{
"names": [
"Michael Hanselmann"
],
"organization": "hansmi.ch"
}
],
"cve": "CVE-2018-10926",
"cwe": {
"id": "CWE-20",
"name": "Improper Input Validation"
},
"discovery_date": "2018-07-30T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1613143"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in RPC request using gfs3_mknod_req supported by glusterfs server. An authenticated attacker could use this flaw to write files to an arbitrary location via path traversal and execute arbitrary code on a glusterfs server node.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "glusterfs: Device files can be created in arbitrary locations",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue did not affect Red Hat Enterprise Linux 6 and 7 as the flaw is present in glusterfs-server, which is not shipped there.\n\nThis flaw affects glusterfs versions included in Red Hat Virtualization 4 Hypervisor. However, in recommended configurations, the vulnerability is only exposed to hypervisor administrators and can not be exploited from virtual machines or other hosts on the network. For Red Hat Virtualization, Product Security has rated this flaw as Moderate. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2018-10926"
},
{
"category": "external",
"summary": "RHBZ#1613143",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1613143"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2018-10926",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-10926"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-10926",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10926"
}
],
"release_date": "2018-09-04T05:30:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2018-09-04T06:24:50+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"restart_required": {
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},
"url": "https://access.redhat.com/errata/RHSA-2018:2607"
},
{
"category": "workaround",
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{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "glusterfs: Device files can be created in arbitrary locations"
},
{
"acknowledgments": [
{
"names": [
"Michael Hanselmann"
],
"organization": "hansmi.ch"
}
],
"cve": "CVE-2018-10927",
"cwe": {
"id": "CWE-20",
"name": "Improper Input Validation"
},
"discovery_date": "2018-07-30T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1612658"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in RPC request using gfs3_lookup_req in glusterfs server. An authenticated attacker could use this flaw to leak information and execute remote denial of service by crashing gluster brick process.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "glusterfs: File status information leak and denial of service",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue did not affect Red Hat Enterprise Linux 6 and 7 as the flaw is present in glusterfs-server, which is not shipped there.\n\nThis flaw affects glusterfs versions included in Red Hat Virtualization 4 Hypervisor. However, in recommended configurations, the vulnerability is only exposed to hypervisor administrators and can not be exploited from virtual machines or other hosts on the network. For Red Hat Virtualization, Product Security has rated this flaw as Moderate. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2018-10927"
},
{
"category": "external",
"summary": "RHBZ#1612658",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1612658"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2018-10927",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-10927"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-10927",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10927"
}
],
"release_date": "2018-09-04T05:30:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2018-09-04T06:24:50+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"restart_required": {
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{
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"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "glusterfs: File status information leak and denial of service"
},
{
"acknowledgments": [
{
"names": [
"Michael Hanselmann"
],
"organization": "hansmi.ch"
}
],
"cve": "CVE-2018-10928",
"cwe": {
"id": "CWE-59",
"name": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)"
},
"discovery_date": "2018-07-30T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1612659"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in RPC request using gfs3_symlink_req in glusterfs server which allows symlink destinations to point to file paths outside of the gluster volume. An authenticated attacker could use this flaw to create arbitrary symlinks pointing anywhere on the server and execute arbitrary code on glusterfs server nodes.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "glusterfs: Improper resolution of symlinks allows for privilege escalation",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue did not affect Red Hat Enterprise Linux 6 and 7 as the flaw is present in glusterfs-server, which is not shipped there.\n\nThis flaw affects glusterfs versions included in Red Hat Virtualization 4 Hypervisor. However, in recommended configurations, the vulnerability is only exposed to hypervisor administrators and can not be exploited from virtual machines or other hosts on the network. For Red Hat Virtualization, Product Security has rated this flaw as Moderate. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2018-10928"
},
{
"category": "external",
"summary": "RHBZ#1612659",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1612659"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2018-10928",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-10928"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-10928",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10928"
}
],
"release_date": "2018-09-04T05:30:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2018-09-04T06:24:50+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"restart_required": {
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "glusterfs: Improper resolution of symlinks allows for privilege escalation"
},
{
"acknowledgments": [
{
"names": [
"Michael Hanselmann"
],
"organization": "hansmi.ch"
}
],
"cve": "CVE-2018-10929",
"cwe": {
"id": "CWE-20",
"name": "Improper Input Validation"
},
"discovery_date": "2018-07-30T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1612660"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in RPC request using gfs2_create_req in glusterfs server. An authenticated attacker could use this flaw to create arbitrary files and execute arbitrary code on glusterfs server nodes.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "glusterfs: Arbitrary file creation on storage server allows for execution of arbitrary code",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue did not affect Red Hat Enterprise Linux 6 and 7 as the flaw is present in glusterfs-server, which is not shipped there.\n\nThis flaw affects glusterfs versions included in Red Hat Virtualization 4 Hypervisor. However, in recommended configurations, the vulnerability is only exposed to hypervisor administrators and can not be exploited from virtual machines or other hosts on the network. For Red Hat Virtualization, Product Security has rated this flaw as Moderate. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2018-10929"
},
{
"category": "external",
"summary": "RHBZ#1612660",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1612660"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2018-10929",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-10929"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-10929",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10929"
}
],
"release_date": "2018-09-04T05:30:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2018-09-04T06:24:50+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"restart_required": {
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},
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
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],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "glusterfs: Arbitrary file creation on storage server allows for execution of arbitrary code"
},
{
"acknowledgments": [
{
"names": [
"Michael Hanselmann"
],
"organization": "hansmi.ch"
}
],
"cve": "CVE-2018-10930",
"cwe": {
"id": "CWE-20",
"name": "Improper Input Validation"
},
"discovery_date": "2018-07-30T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1612664"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in RPC request using gfs3_rename_req in glusterfs server. An authenticated attacker could use this flaw to write to a destination outside the gluster volume.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "glusterfs: Files can be renamed outside volume",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue did not affect Red Hat Enterprise Linux 6 and 7 as the flaw is present in glusterfs-server, which is not shipped there.\n\nThis flaw affects glusterfs versions included in Red Hat Virtualization 4 Hypervisor. However, in recommended configurations, the vulnerability is only exposed to hypervisor administrators and can not be exploited from virtual machines or other hosts on the network. For Red Hat Virtualization, Product Security has rated this flaw as Moderate. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2018-10930"
},
{
"category": "external",
"summary": "RHBZ#1612664",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1612664"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2018-10930",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-10930"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-10930",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10930"
}
],
"release_date": "2018-09-04T05:30:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2018-09-04T06:24:50+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2018:2607"
},
{
"category": "workaround",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
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],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "glusterfs: Files can be renamed outside volume"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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