Divide By Zero Affecting perf package, versions <0:4.18.0-553.8.1.el8_10
Threat Intelligence
EPSS
0.04% (15th
percentile)
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Test your applications- Snyk ID SNYK-RHEL8-PERF-7036294
- published 23 May 2024
- disclosed 22 May 2024
Introduced: 22 May 2024
CVE-2021-47495 Open this link in a new tabHow to fix?
Upgrade RHEL:8 perf to version 0:4.18.0-553.8.1.el8_10 or higher.
This issue was patched in RHSA-2024:4211.
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.
In the Linux kernel, the following vulnerability has been resolved:
usbnet: sanity check for maxpacket
maxpacket of 0 makes no sense and oopses as we need to divide by it. Give up.
V2: fixed typo in log and stylistic issues
References
- https://access.redhat.com/security/cve/CVE-2021-47495
- https://git.kernel.org/stable/c/002d82227c0abe29118cf80f7e2f396b22d448ed
- https://git.kernel.org/stable/c/397430b50a363d8b7bdda00522123f82df6adc5e
- https://git.kernel.org/stable/c/492140e45d2bf27c1014243f8616a9b612144e20
- https://git.kernel.org/stable/c/524f333e98138d909a0a0c574a9ff6737dce2767
- https://git.kernel.org/stable/c/693ecbe8f799405f8775719deedb1f76265d375a
- https://git.kernel.org/stable/c/74b3b27cf9fecce00cd8918b7882fd81191d0aa4
- https://git.kernel.org/stable/c/7e8b6a4f18edee070213cb6a77118e8a412253c5
- https://git.kernel.org/stable/c/b9eba0a4a527e04d712f0e0401e5391ef124b33e
CVSS Scores
version 3.1