Use of Uninitialized Resource Affecting perf package, versions <0:4.18.0-240.el8
Threat Intelligence
EPSS
0.05% (21st
percentile)
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Test your applications- Snyk ID SNYK-RHEL8-PERF-3808125
- published 26 Jul 2021
- disclosed 1 May 2020
Introduced: 1 May 2020
CVE-2020-10732 Open this link in a new tabHow to fix?
Upgrade RHEL:8 perf to version 0:4.18.0-240.el8 or higher.
This issue was patched in RHSA-2020:4431.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
A flaw was found in the Linux kernel's implementation of Userspace core dumps. This flaw allows an attacker with a local account to crash a trivial program and exfiltrate private kernel data.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10732
- https://security.netapp.com/advisory/ntap-20210129-0005/
- https://access.redhat.com/security/cve/CVE-2020-10732
- https://github.com/google/kmsan/issues/76
- https://github.com/ruscur/linux/commit/a95cdec9fa0c08e6eeb410d461c03af8fd1fef0a
- https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=aca969cacf07f41070d788ce2b8ca71f09d5207d
- https://lore.kernel.org/lkml/CAG_fn=VZZ7yUxtOGzuTLkr7wmfXWtKK9BHHYawj=rt9XWnCYvg@mail.gmail.com/
- https://twitter.com/grsecurity/status/1252558055629299712
- https://access.redhat.com/errata/RHSA-2020:4431
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
- https://usn.ubuntu.com/4411-1/
- https://usn.ubuntu.com/4427-1/
- https://usn.ubuntu.com/4439-1/
- https://usn.ubuntu.com/4440-1/
- https://usn.ubuntu.com/4485-1/
- https://bugzilla.redhat.com/show_bug.cgi?id=1831399
- https://lore.kernel.org/lkml/CAG_fn=VZZ7yUxtOGzuTLkr7wmfXWtKK9BHHYawj=rt9XWnCYvg%40mail.gmail.com/
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