rhsa-2020_3016
Vulnerability from csaf_redhat
Published
2020-07-21 11:24
Modified
2024-11-05 22:28
Summary
Red Hat Security Advisory: kernel-rt security and bug fix update
Notes
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.
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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* kernel: use-after-free in sound/core/timer.c (CVE-2019-19807)
* kernel: kernel: DAX hugepages not considered during mremap (CVE-2020-10757)
* kernel: Rogue cross-process SSBD shutdown. Linux scheduler logical bug allows an attacker to turn off the SSBD protection. (CVE-2020-10766)
* kernel: Indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available. (CVE-2020-10767)
* kernel: Indirect branch speculation can be enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command. (CVE-2020-10768)
* kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in drivers/net/wireless/marvell/mwifiex/scan.c (CVE-2020-12653)
* kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function in drivers/net/wireless/marvell/mwifiex/wmm.c (CVE-2020-12654)
* Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario (CVE-2020-12888)
* kernel: kvm: Information leak within a KVM guest (CVE-2019-3016)
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):
* kernel-rt: update RT source tree to the RHEL-8.2.z2 source tree (BZ#1829582)
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": "Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario",
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"text": "This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.\nThis issue affects the versions of the kernel package as shipped with Red Hat Enterprise Linux 7 and 8. Future kernel updates for Red Hat Enterprise Linux 7 and 8 may address this issue.",
"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.",
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{
"category": "self",
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"url": "https://access.redhat.com/security/cve/CVE-2020-12888"
},
{
"category": "external",
"summary": "RHBZ#1836244",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1836244"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-12888",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-12888"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-12888",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-12888"
}
],
"release_date": "2020-05-14T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2020-07-21T11:24:46+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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- 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.