Race Condition Affecting perf package, versions <0:4.18.0-147.5.1.el8_1
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Test your applications- Snyk ID SNYK-RHEL8-PERF-3642885
- published 26 Jul 2021
- disclosed 20 Nov 2019
How to fix?
Upgrade RHEL:8 perf to version 0:4.18.0-147.5.1.el8_1 or higher.
This issue was patched in RHSA-2020:0339.
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.
The fix for CVE-2019-11599, affecting the Linux kernel before 5.0.10 was not complete. A local user could use this flaw to obtain sensitive information, cause a denial of service, or possibly have other unspecified impacts by triggering a race condition with mmget_not_zero or get_task_mm calls.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14898
- https://security.netapp.com/advisory/ntap-20200608-0001/
- https://access.redhat.com/security/cve/CVE-2019-14898
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1790
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.114
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.37
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.10
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://access.redhat.com/errata/RHSA-2020:0339
- https://bugzilla.redhat.com/show_bug.cgi?id=1774671