rhsa-2021_4613
Vulnerability from csaf_redhat
Published
2021-11-10 17:14
Modified
2024-09-16 06:17
Summary
Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP10 security update
Notes
Topic
Red Hat JBoss Core Services Apache HTTP Server 2.4.37 Service Pack 10 zip release for Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, and Microsoft Windows is available.
Red Hat Product Security has rated this update as having a security impact of Moderate. 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
Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience.
This release adds the new Apache HTTP Server 2.4.37 Service Pack 10 packages that are part of the JBoss Core Services offering.
This release serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.37 Service Pack 9 and includes bug fixes and enhancements. Refer to the Release Notes for information on the most significant bug fixes and enhancements included in this release.
Security Fix(es):
* httpd: Single zero byte stack overflow in mod_auth_digest (CVE-2020-35452)
* httpd: mod_session NULL pointer dereference in parser (CVE-2021-26690)
* httpd: Heap overflow in mod_session (CVE-2021-26691)
* httpd: mod_proxy_wstunnel tunneling of non Upgraded connection (CVE-2019-17567)
* httpd: MergeSlashes regression (CVE-2021-30641)
* httpd: mod_proxy NULL pointer dereference (CVE-2020-13950)
* jbcs-httpd24-openssl: openssl: NULL pointer dereference in X509_issuer_and_serial_hash() (CVE-2021-23841)
* openssl: Read buffer overruns processing ASN.1 strings (CVE-2021-3712)
* openssl: integer overflow in CipherUpdate (CVE-2021-23840)
* pcre: buffer over-read in JIT when UTF is disabled (CVE-2019-20838)
* pcre: integer overflow in libpcre (CVE-2020-14155)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
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.
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"Marc Stern"
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{
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"id": "CWE-190",
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"notes": [
{
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"text": "libpcre in PCRE before 8.44 allows an integer overflow via a large number after a (?C substring.",
"title": "Vulnerability description"
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{
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"text": "pcre: Integer overflow when parsing callout numeric arguments",
"title": "Vulnerability summary"
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{
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"product_ids": [
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"category": "none"
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{
"category": "workaround",
"details": "This flaw can be mitigated by not compiling regular expressions with a callout value greater outside of 0-255 or handling the value passed to the callback within the application code.",
"product_ids": [
"Red Hat JBoss Core Services 1"
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"baseScore": 5.3,
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"products": [
"Red Hat JBoss Core Services 1"
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"threats": [
{
"category": "impact",
"details": "Low"
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],
"title": "pcre: Integer overflow when parsing callout numeric arguments"
},
{
"acknowledgments": [
{
"names": [
"the Apache project"
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{
"names": [
"Antonio Morales"
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"cwe": {
"id": "CWE-119",
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},
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{
"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": {
"fixed": [
"Red Hat JBoss Core Services 1"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2020-35452"
},
{
"category": "external",
"summary": "RHBZ#1966724",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1966724"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-35452",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-35452"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-35452",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35452"
},
{
"category": "external",
"summary": "https://httpd.apache.org/security/vulnerabilities_24.html",
"url": "https://httpd.apache.org/security/vulnerabilities_24.html"
}
],
"release_date": "2021-06-04T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nThe References section of this erratum contains a download link for the update. You must be logged in to download the update.",
"product_ids": [
"Red Hat JBoss Core Services 1"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2021:4613"
},
{
"category": "workaround",
"details": "Only configurations which use mod_auth_digest are affected by this flaw. Also as per upstream this flaw is not exploitable in most conditions, so there should really be no impact of this flaw.",
"product_ids": [
"Red Hat JBoss Core Services 1"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
},
"products": [
"Red Hat JBoss Core Services 1"
]
}
],
"threats": [
{
"category": "impact",
"details": "Low"
}
],
"title": "httpd: Single zero byte stack overflow in mod_auth_digest"
},
{
"cve": "CVE-2021-3688",
"cwe": {
"id": "CWE-200",
"name": "Exposure of Sensitive Information to an Unauthorized Actor"
},
"discovery_date": "2021-05-26T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1990252"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Red Hat JBoss Core Services HTTP Server in all versions, where it does not properly normalize the path component of a request URL contains dot-dot-semicolon(s). This flaw could allow an attacker to access unauthorized information or possibly conduct further attacks. The highest threat from this vulnerability is to data confidentiality and integrity.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "JBCS: URL normalization issue with dot-dot-semicolon(s) leads to information disclosure",
"title": "Vulnerability summary"
},
{
"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": {
"fixed": [
"Red Hat JBoss Core Services 1"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-3688"
},
{
"category": "external",
"summary": "RHBZ#1990252",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1990252"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-3688",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3688"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-3688",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3688"
}
],
"release_date": "2021-08-05T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nThe References section of this erratum contains a download link for the update. You must be logged in to download the update.",
"product_ids": [
"Red Hat JBoss Core Services 1"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2021:4613"
},
{
"category": "workaround",
"details": "Manually add LocationMatch directive to deny any possible problem requests in the JBCS httpd configuration. For example:\n~~~\n\u003cLocationMatch \".*\\.\\.;.*\"\u003e\n Require all denied\n\u003c/LocationMatch\u003e\n~~~",
"product_ids": [
"Red Hat JBoss Core Services 1"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
},
"products": [
"Red Hat JBoss Core Services 1"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "JBCS: URL normalization issue with dot-dot-semicolon(s) leads to information disclosure"
},
{
"acknowledgments": [
{
"names": [
"the OpenSSL project"
],
"organization": "Ingo Schwarze",
"summary": "Acknowledged by upstream."
}
],
"cve": "CVE-2021-3712",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2021-08-19T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1995634"
}
],
"notes": [
{
"category": "description",
"text": "It was found that openssl assumed ASN.1 strings to be NUL terminated. A malicious actor may be able to force an application into calling openssl function with a specially crafted, non-NUL terminated string to deliberately hit this bug, which may result in a crash of the application, causing a Denial of Service attack, or possibly, memory disclosure. The highest threat from this vulnerability is to data confidentiality and system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "openssl: Read buffer overruns processing ASN.1 strings",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "The following Red Hat products do not ship the affected OpenSSL component but rely on the Red Hat Enterprise Linux to consume them:\n * Red Hat Satellite\n * Red Hat Update Infrastructure\n * Red Hat CloudForms\n\nThe Red Hat Advanced Cluster Management for Kubernetes is using the vulnerable version of the library, however the vulnerable code path is not reachable.",
"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": {
"fixed": [
"Red Hat JBoss Core Services 1"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-3712"
},
{
"category": "external",
"summary": "RHBZ#1995634",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1995634"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-3712",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3712"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-3712",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3712"
},
{
"category": "external",
"summary": "https://www.openssl.org/news/secadv/20210824.txt",
"url": "https://www.openssl.org/news/secadv/20210824.txt"
}
],
"release_date": "2021-08-24T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nThe References section of this erratum contains a download link for the update. You must be logged in to download the update.",
"product_ids": [
"Red Hat JBoss Core Services 1"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2021:4613"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat JBoss Core Services 1"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "openssl: Read buffer overruns processing ASN.1 strings"
},
{
"cve": "CVE-2021-23840",
"cwe": {
"id": "CWE-190",
"name": "Integer Overflow or Wraparound"
},
"discovery_date": "2021-02-09T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1930324"
}
],
"notes": [
{
"category": "description",
"text": "Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissible length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "openssl: integer overflow in CipherUpdate",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw only affects applications which are compiled with OpenSSL and using EVP_CipherUpdate, EVP_EncryptUpdate or EVP_DecryptUpdate functions. When specially-crafted values are passed to these functions, it can cause the application to crash or behave incorrectly.\n\nOpenSSL in Red Hat Enterprise Linux 9 was marked as not affected as its already fixed in RHEL9 Alpha release.",
"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": {
"fixed": [
"Red Hat JBoss Core Services 1"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-23840"
},
{
"category": "external",
"summary": "RHBZ#1930324",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1930324"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-23840",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-23840"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-23840",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23840"
},
{
"category": "external",
"summary": "https://www.openssl.org/news/secadv/20210216.txt",
"url": "https://www.openssl.org/news/secadv/20210216.txt"
}
],
"release_date": "2021-02-16T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nThe References section of this erratum contains a download link for the update. You must be logged in to download the update.",
"product_ids": [
"Red Hat JBoss Core Services 1"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2021:4613"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat JBoss Core Services 1"
]
}
],
"threats": [
{
"category": "impact",
"details": "Low"
}
],
"title": "openssl: integer overflow in CipherUpdate"
},
{
"cve": "CVE-2021-23841",
"cwe": {
"id": "CWE-476",
"name": "NULL Pointer Dereference"
},
"discovery_date": "2021-02-16T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1930310"
}
],
"notes": [
{
"category": "description",
"text": "The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it fails to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "openssl: NULL pointer dereference in X509_issuer_and_serial_hash()",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is a a null pointer dereference in the X509_issuer_and_serial_hash() function, which can result in crash if called by an application compiled with OpenSSL, by passing a specially-crafted certificate. OpenSSL internally does not use this function.",
"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": {
"fixed": [
"Red Hat JBoss Core Services 1"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-23841"
},
{
"category": "external",
"summary": "RHBZ#1930310",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1930310"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-23841",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-23841"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-23841",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23841"
},
{
"category": "external",
"summary": "https://www.openssl.org/news/secadv/20210216.txt",
"url": "https://www.openssl.org/news/secadv/20210216.txt"
}
],
"release_date": "2021-02-16T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nThe References section of this erratum contains a download link for the update. You must be logged in to download the update.",
"product_ids": [
"Red Hat JBoss Core Services 1"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2021:4613"
},
{
"category": "workaround",
"details": "As per upstream \"The function X509_issuer_and_serial_hash() is never directly called by OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on certificates that may have been obtained from untrusted sources.\"",
"product_ids": [
"Red Hat JBoss Core Services 1"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat JBoss Core Services 1"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "openssl: NULL pointer dereference in X509_issuer_and_serial_hash()"
},
{
"acknowledgments": [
{
"names": [
"the Apache project"
]
},
{
"names": [
"Antonio Morales"
],
"organization": "GHSL"
}
],
"cve": "CVE-2021-26690",
"cwe": {
"id": "CWE-476",
"name": "NULL Pointer Dereference"
},
"discovery_date": "2021-05-27T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1966729"
}
],
"notes": [
{
"category": "description",
"text": "A NULL pointer dereference was found in Apache httpd mod_session. The highest threat from this vulnerability is to system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "httpd: mod_session: NULL pointer dereference when parsing Cookie header",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is a null pointer deference caused when using mod_session. It can result in crash of httpd child process by a remote attacker.",
"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": {
"fixed": [
"Red Hat JBoss Core Services 1"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-26690"
},
{
"category": "external",
"summary": "RHBZ#1966729",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1966729"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-26690",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-26690"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-26690",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26690"
},
{
"category": "external",
"summary": "https://httpd.apache.org/security/vulnerabilities_24.html",
"url": "https://httpd.apache.org/security/vulnerabilities_24.html"
}
],
"release_date": "2021-06-04T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nThe References section of this erratum contains a download link for the update. You must be logged in to download the update.",
"product_ids": [
"Red Hat JBoss Core Services 1"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2021:4613"
},
{
"category": "workaround",
"details": "Only configurations which use the \"SessionEnv\" directive (which is not widely used) are vulnerable to this flaw. SessionEnv is not enabled in default configuration of httpd package shipped with Red Hat Products.",
"product_ids": [
"Red Hat JBoss Core Services 1"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat JBoss Core Services 1"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "httpd: mod_session: NULL pointer dereference when parsing Cookie header"
},
{
"acknowledgments": [
{
"names": [
"the Apache project",
"Christophe Jaillet"
]
}
],
"cve": "CVE-2021-26691",
"cwe": {
"id": "CWE-119",
"name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
},
"discovery_date": "2021-05-27T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1966732"
}
],
"notes": [
{
"category": "description",
"text": "A heap overflow flaw was found In Apache httpd mod_session. The highest threat from this vulnerability is to system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "httpd: mod_session: Heap overflow via a crafted SessionHeader value",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw can result in a crash of the httpd child process when mod_session is used.",
"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": {
"fixed": [
"Red Hat JBoss Core Services 1"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-26691"
},
{
"category": "external",
"summary": "RHBZ#1966732",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1966732"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-26691",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-26691"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-26691",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26691"
},
{
"category": "external",
"summary": "https://httpd.apache.org/security/vulnerabilities_24.html",
"url": "https://httpd.apache.org/security/vulnerabilities_24.html"
}
],
"release_date": "2021-06-04T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nThe References section of this erratum contains a download link for the update. You must be logged in to download the update.",
"product_ids": [
"Red Hat JBoss Core Services 1"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2021:4613"
},
{
"category": "workaround",
"details": "Only configurations which use the \"SessionEnv\" directive (which is not widely used) are vulnerable to this flaw. SessionEnv is not enabled in default configuration of httpd package shipped with Red Hat Products.",
"product_ids": [
"Red Hat JBoss Core Services 1"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"Red Hat JBoss Core Services 1"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "httpd: mod_session: Heap overflow via a crafted SessionHeader value"
},
{
"acknowledgments": [
{
"names": [
"the Apache project",
"Christoph Anton Mitterer"
]
}
],
"cve": "CVE-2021-30641",
"cwe": {
"id": "CWE-20",
"name": "Improper Input Validation"
},
"discovery_date": "2021-05-27T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1966743"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Apache httpd. A possible regression from an earlier security fix broke behavior of MergeSlashes. The highest threat from this vulnerability is to data integrity.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "httpd: Unexpected URL matching with \u0027MergeSlashes OFF\u0027",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw was introduced when fixing https://access.redhat.com/security/cve/cve-2019-0220, therefore versions of httpd package shipped with Red Hat Enterprise Linux 7, 8 and Red Hat Software Collections are affected by this flaw.",
"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": {
"fixed": [
"Red Hat JBoss Core Services 1"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-30641"
},
{
"category": "external",
"summary": "RHBZ#1966743",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1966743"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-30641",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-30641"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-30641",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-30641"
},
{
"category": "external",
"summary": "https://httpd.apache.org/security/vulnerabilities_24.html",
"url": "https://httpd.apache.org/security/vulnerabilities_24.html"
}
],
"release_date": "2021-06-04T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nThe References section of this erratum contains a download link for the update. You must be logged in to download the update.",
"product_ids": [
"Red Hat JBoss Core Services 1"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2021:4613"
},
{
"category": "workaround",
"details": "This issue can be mitigated by setting the \"MergeSlashes\" directive to OFF",
"product_ids": [
"Red Hat JBoss Core Services 1"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"products": [
"Red Hat JBoss Core Services 1"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "httpd: Unexpected URL matching with \u0027MergeSlashes OFF\u0027"
},
{
"cve": "CVE-2021-34798",
"cwe": {
"id": "CWE-476",
"name": "NULL Pointer Dereference"
},
"discovery_date": "2021-09-16T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2005128"
}
],
"notes": [
{
"category": "description",
"text": "A NULL pointer dereference in httpd allows an unauthenticated remote attacker to crash httpd by providing malformed HTTP requests. The highest threat from this vulnerability is to system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "httpd: NULL pointer dereference via malformed requests",
"title": "Vulnerability summary"
},
{
"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": {
"fixed": [
"Red Hat JBoss Core Services 1"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-34798"
},
{
"category": "external",
"summary": "RHBZ#2005128",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2005128"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-34798",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-34798"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-34798",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-34798"
},
{
"category": "external",
"summary": "https://httpd.apache.org/security/vulnerabilities_24.html",
"url": "https://httpd.apache.org/security/vulnerabilities_24.html"
}
],
"release_date": "2021-09-16T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nThe References section of this erratum contains a download link for the update. You must be logged in to download the update.",
"product_ids": [
"Red Hat JBoss Core Services 1"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2021:4613"
},
{
"category": "workaround",
"details": "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example.",
"product_ids": [
"Red Hat JBoss Core Services 1"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat JBoss Core Services 1"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "httpd: NULL pointer dereference via malformed requests"
}
]
}
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