Use After Free Affecting perf package, versions <0:4.18.0-305.el8
Threat Intelligence
EPSS
0.04% (6th
percentile)
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Test your applications- Snyk ID SNYK-RHEL8-PERF-1470416
- published 26 Jul 2021
- disclosed 25 Nov 2020
Introduced: 25 Nov 2020
CVE-2020-27835 Open this link in a new tabHow to fix?
Upgrade RHEL:8 perf to version 0:4.18.0-305.el8 or higher.
This issue was patched in RHSA-2021:1578.
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 use after free in the Linux kernel infiniband hfi1 driver in versions prior to 5.10-rc6 was found in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system.
CVSS Scores
version 3.1