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Vulnerability · Published Feb 4, 2022 · Assigned by redhat

CVE-2022-0264

Medium 5.5

In plain English

A medium-severity security flaw in kernel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.3%top 82.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A vulnerability was found in the Linux kernel's eBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel. This flaws affects kernel versions < v5.16-rc6

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.15.5-2DEBIAN-CVE-2022-0264
Debian:13linux5.15.5-2DEBIAN-CVE-2022-0264
Debian:14linux5.15.5-2DEBIAN-CVE-2022-0264

Affected products (as reported)

VendorProductVersions
n/a kernel kernel v5.16-rc6

Weakness: CWE-755

References