Out-of-Bounds Affecting kernel-rt-trace-devel package, versions <0:3.10.0-1062.4.1.rt56.1027.el7
Threat Intelligence
EPSS
0.05% (17th
percentile)
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Test your applications- Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-2146355
- published 26 Jul 2021
- disclosed 26 Jul 2019
Introduced: 26 Jul 2019
CVE-2018-20856 Open this link in a new tabHow to fix?
Upgrade Centos:7 kernel-rt-trace-devel to version 0:3.10.0-1062.4.1.rt56.1027.el7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-trace-devel package and not the kernel-rt-trace-devel package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled.
References
- https://seclists.org/bugtraq/2019/Aug/18
- https://seclists.org/bugtraq/2019/Aug/26
- https://security.netapp.com/advisory/ntap-20190905-0002/
- https://support.f5.com/csp/article/K14673240?utm_source=f5support&utm_medium=RSS
- https://access.redhat.com/security/cve/CVE-2018-20856
- https://www.debian.org/security/2019/dsa-4497
- http://packetstormsecurity.com/files/154059/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html
- http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7
- https://github.com/torvalds/linux/commit/54648cf1ec2d7f4b6a71767799c45676a138ca24
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54648cf1ec2d7f4b6a71767799c45676a138ca24
- https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html
- https://access.redhat.com/errata/RHSA-2019:3089
- https://usn.ubuntu.com/4094-1/
- https://usn.ubuntu.com/4116-1/
- https://usn.ubuntu.com/4118-1/
- https://support.f5.com/csp/article/K14673240?utm_source=f5support&%3Butm_medium=RSS
CVSS Scores
version 3.1