Race Condition Affecting kernel-devel-azure package, versions <4.12.14-8.13.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-SLES151-KERNELDEVELAZURE-2740517
- published14 Apr 2022
- disclosed6 Aug 2019
Introduced: 6 Aug 2019
CVE-2019-13233 (opens in a new tab)How to fix?
Upgrade SLES:15.1 kernel-devel-azure to version 4.12.14-8.13.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-devel-azure package and not the kernel-devel-azure package as distributed by SLES.
See How to fix? for SLES:15.1 relevant fixed versions and status.
In arch/x86/lib/insn-eval.c in the Linux kernel before 5.1.9, there is a use-after-free for access to an LDT entry because of a race condition between modify_ldt() and a #BR exception for an MPX bounds violation.
References
- https://www.suse.com/security/cve/CVE-2019-13233.html
- https://bugzilla.suse.com/1140454
- https://bugzilla.suse.com/1144502
- https://support.f5.com/csp/article/K13331647?utm_source=f5support&utm_medium=RSS
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html
- http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html
- https://access.redhat.com/errata/RHSA-2019:3309
- https://access.redhat.com/errata/RHSA-2019:3517
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1879
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.9
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=de9f869616dd95e95c00bdd6b0fcd3421e8a4323
- https://github.com/torvalds/linux/commit/de9f869616dd95e95c00bdd6b0fcd3421e8a4323
- https://seclists.org/bugtraq/2019/Aug/13
- https://security.netapp.com/advisory/ntap-20190806-0001/
- https://support.f5.com/csp/article/K13331647?utm_source=f5support&%3Butm_medium=RSS
- https://usn.ubuntu.com/4093-1/
- https://usn.ubuntu.com/4094-1/
- https://usn.ubuntu.com/4117-1/
- https://usn.ubuntu.com/4118-1/
- https://www.debian.org/security/2019/dsa-4495