rhsa-2020_1493
Vulnerability from csaf_redhat
Published
2020-04-16 14:42
Modified
2024-11-05 22:05
Summary
Red Hat Security Advisory: kernel-alt security and bug fix update
Notes
Topic
An update for kernel-alt is now available for 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
The kernel-alt packages provide the Linux kernel version 4.x.
Security Fix(es):
* kernel: heap-based buffer overflow in mwifiex_process_country_ie() function in drivers/net/wireless/marvell/mwifiex/sta_ioctl.c (CVE-2019-14895)
* kernel: heap overflow in marvell/mwifiex/tdls.c (CVE-2019-14901)
* kernel: triggering AP to send IAPP location updates for stations before the required authentication process has completed can lead to DoS (CVE-2019-5108)
* kernel: powerpc: local user can read vector registers of other users' processes via an interrupt (CVE-2019-15031)
* kernel: out-of-bounds array access in __xfrm_policy_unlink (CVE-2019-15666)
* kernel: a NULL pointer dereference in drivers/net/wireless/ath/ath10k/usb.c leads to a crash (CVE-2019-15099)
* kernel: when cpu.cfs_quota_us is used allows attackers to cause a denial of service against non-cpu-bound applications (CVE-2019-19922)
* kernel: Null pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c (CVE-2019-20054)
* kernel: memory leak in mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c (CVE-2019-20095)
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.
Bug Fix(es):
* rhel-alt-76z bsd process accounting(acct(2)) does not work (BZ#1763618)
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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"text": "1789927"
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{
"category": "description",
"text": "A flaw was found in the Linux kernel\u2019s implementation of the WiFi station handoff code. An attacker within the radio range could use this flaw to deny a valid device from joining the access point.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: triggering AP to send IAPP location updates for stations before the required authentication process has completed can lead to DoS",
"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"
}
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2019-5108"
},
{
"category": "external",
"summary": "RHBZ#1789927",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1789927"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-5108",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-5108"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-5108",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-5108"
}
],
"release_date": "2019-12-11T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-04-16T14:42:22+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\n\nThe system must be rebooted for this update to take effect.",
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"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: triggering AP to send IAPP location updates for stations before the required authentication process has completed can lead to DoS"
},
{
"acknowledgments": [
{
"names": [
"ADLab of Venustech"
]
}
],
"cve": "CVE-2019-14895",
"cwe": {
"id": "CWE-122",
"name": "Heap-based Buffer Overflow"
},
"discovery_date": "2019-11-19T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1774870"
}
],
"notes": [
{
"category": "description",
"text": "A heap-based buffer overflow was discovered in the Linux kernel\u0027s Marvell WiFi chip driver. The flaw could occur when the station attempts a connection negotiation during the handling of the remote devices country settings. This could allow the remote device to cause a denial of service (system crash) or possibly execute arbitrary code.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: heap-based buffer overflow in mwifiex_process_country_ie() function in drivers/net/wireless/marvell/mwifiex/sta_ioctl.c",
"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"
}
],
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"title": "kernel: heap-based buffer overflow in mwifiex_process_country_ie() function in drivers/net/wireless/marvell/mwifiex/sta_ioctl.c"
},
{
"acknowledgments": [
{
"names": [
"Huangwen and Wang Qize"
],
"organization": "ADLab of VenusTech"
}
],
"cve": "CVE-2019-14901",
"cwe": {
"id": "CWE-122",
"name": "Heap-based Buffer Overflow"
},
"discovery_date": "2019-11-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1773519"
}
],
"notes": [
{
"category": "description",
"text": "A heap overflow flaw was found in the Linux kernel\u0027s Marvell WiFi chip driver. The vulnerability allows a remote attacker to cause a system crash, resulting in a denial of service, or execute arbitrary code. The highest threat with this vulnerability is with the availability of the system. If code execution occurs, the code will run with the permissions of root. This will affect both confidentiality and integrity of files on the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: heap overflow in marvell/mwifiex/tdls.c",
"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"
}
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"scope": "UNCHANGED",
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"details": "Important"
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],
"title": "kernel: heap overflow in marvell/mwifiex/tdls.c"
},
{
"cve": "CVE-2019-15031",
"cwe": {
"id": "CWE-200",
"name": "Exposure of Sensitive Information to an Unauthorized Actor"
},
"discovery_date": "2019-10-09T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1760063"
}
],
"notes": [
{
"category": "description",
"text": "A flaw in the Linux kernel on the PowerPC platform, was found where a local user can read vector registers of other user processes (during a hardware interrupt). An attacker must start a transaction when the FPU operation begins or there is no leakage. Vector registers will become corrupted with values from the different local Linux processes, because of the missing check inside arch/powerpc/kernel/process.c. The highest threat from this vulnerability is confidentiality of data and availability of the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: powerpc: local user can read vector registers of other users\u0027 processes via an interrupt",
"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"
}
],
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{
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{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-15031",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-15031"
}
],
"release_date": "2019-09-13T00:00:00+00:00",
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"date": "2020-04-16T14:42:22+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\n\nThe system must be rebooted for this update to take effect.",
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{
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"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: powerpc: local user can read vector registers of other users\u0027 processes via an interrupt"
},
{
"cve": "CVE-2019-15099",
"cwe": {
"id": "CWE-20",
"name": "Improper Input Validation"
},
"discovery_date": "2019-08-20T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1743560"
}
],
"notes": [
{
"category": "description",
"text": "A null pointer dereference flaw was discovered in the Linux kernel\u0027s implementation of the ath10k USB device driver. The vulnerability requires the attacker to plug in a specially crafted hardware device that present endpoint descriptors that normal ath10k devices do not recognize. System availability is the highest threat with this vulnerability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: a NULL pointer dereference in drivers/net/wireless/ath/ath10k/usb.c leads to a crash",
"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": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2019-15099"
},
{
"category": "external",
"summary": "RHBZ#1743560",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1743560"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-15099",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-15099"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-15099",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-15099"
}
],
"release_date": "2019-08-20T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-04-16T14:42:22+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\n\nThe system must be rebooted for this update to take effect.",
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"url": "https://access.redhat.com/errata/RHSA-2020:1493"
},
{
"category": "workaround",
"details": "As the ath10k module will be auto-loaded when required, its use can be disabled by preventing the module from loading using the following instructions.\n\nOn the command line, as root, execute the following command:\n# echo \"install ath10k_usb /bin/true\" \u003e\u003e /etc/modprobe.d/disable-ath10k_usb.conf \n \nThe system will need to be restarted if the ath10k_usb module are loaded. In most circumstances, the kernel modules will be unable to be unloaded while the ath10k WiFi network interface is in use. If the system requires this module to work correctly, this mitigation may not be suitable.\n\nIf you need further assistance, see KCS article https://access.redhat.com/solutions/41278 or contact Red Hat Global Support Services.",
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],
"title": "kernel: a NULL pointer dereference in drivers/net/wireless/ath/ath10k/usb.c leads to a crash"
},
{
"cve": "CVE-2019-15666",
"cwe": {
"id": "CWE-400",
"name": "Uncontrolled Resource Consumption"
},
"discovery_date": "2019-08-27T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1747334"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel. When xfrm policy removal occurs a system crash could occur. These policy changes generally occur through the ip command or a netlink socket.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: out-of-bounds array access in __xfrm_policy_unlink",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A local privileged user (with CAP_NET_ADMIN or root) is required to exploit this condition. With this limitation, this issue is rated as Moderate.",
"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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},
{
"category": "external",
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{
"category": "external",
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-15666",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-15666"
}
],
"release_date": "2019-08-27T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2020-04-16T14:42:22+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\n\nThe system must be rebooted for this update to take effect.",
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"details": "Moderate"
}
],
"title": "kernel: out-of-bounds array access in __xfrm_policy_unlink"
},
{
"cve": "CVE-2019-19922",
"cwe": {
"id": "CWE-400",
"name": "Uncontrolled Resource Consumption"
},
"discovery_date": "2020-01-17T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1792512"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u2019s scheduler, where it can allow attackers to cause a denial of service against non-CPU-bound applications by generating a workload that triggers unwanted scheduling slice expiration. A local attacker who can trigger a specific workload type could abuse this technique to trigger a system to be seen as degraded, and possibly trigger workload-rebalance in systems that use the slice-expiration metric as a measure of system health.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: when cpu.cfs_quota_us is used allows attackers to cause a denial of service against non-cpu-bound applications",
"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": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2019-19922"
},
{
"category": "external",
"summary": "RHBZ#1792512",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1792512"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-19922",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-19922"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-19922",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-19922"
}
],
"release_date": "2019-12-22T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-04-16T14:42:22+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\n\nThe system must be rebooted for this update to take effect.",
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{
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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},
{
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"id": "CWE-119",
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},
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}
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"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Null pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c",
"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"
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"url": "https://access.redhat.com/security/cve/CVE-2019-20054"
},
{
"category": "external",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1790063"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-20054",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-20054"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-20054",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-20054"
}
],
"release_date": "2019-12-28T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-04-16T14:42:22+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\n\nThe system must be rebooted for this update to take effect.",
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"privilegesRequired": "NONE",
"scope": "UNCHANGED",
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"title": "kernel: Null pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c"
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{
"cve": "CVE-2019-20095",
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"id": "CWE-772",
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"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: memory leak in mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c",
"title": "Vulnerability summary"
},
{
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2019-20095"
},
{
"category": "external",
"summary": "RHBZ#1791954",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1791954"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-20095",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-20095"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-20095",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-20095"
}
],
"release_date": "2019-12-30T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-04-16T14:42:22+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\n\nThe system must be rebooted for this update to take effect.",
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"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2020:1493"
},
{
"category": "workaround",
"details": "As connecting to a wireless device is not automatic and initiated by a user, not connecting to rogue access points would prevent this flaw from being abused.",
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"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.2,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
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"threats": [
{
"category": "impact",
"details": "Low"
}
],
"title": "kernel: memory leak in mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c"
}
]
}
Loading...
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.