Out-of-Bounds The advisory has been revoked - it doesn't affect any version of package kernel-cross-headers (opens in a new tab)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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-CENTOS8-KERNELCROSSHEADERS-2338744
- published13 Jan 2022
- disclosed11 Jan 2022
Introduced: 11 Jan 2022
CVE-2021-4204 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:8.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-cross-headers package and not the kernel-cross-headers package as distributed by Centos.
An out-of-bounds (OOB) memory access flaw was found in the Linux kernel's eBPF due to an Improper Input Validation. This flaw allows a local attacker with a special privilege to crash the system or leak internal information.
References
- https://access.redhat.com/security/cve/CVE-2021-4204
- https://bugzilla.redhat.com/show_bug.cgi?id=2039178
- https://security-tracker.debian.org/tracker/CVE-2021-4204
- https://security.netapp.com/advisory/ntap-20221228-0003/
- https://www.openwall.com/lists/oss-security/2022/01/11/4
- https://github.com/tr3ee/CVE-2021-4204