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Vulnerability · Published Feb 13, 2022 · Assigned by mitre

CVE-2021-44879

Medium 5.5

In plain English

A medium-severity security flaw in the linux package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)1.5%top 25.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In gc_data_segment in fs/f2fs/gc.c in the Linux kernel before 5.16.3, special files are not considered, leading to a move_data_page NULL pointer dereference.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.16.7-1DEBIAN-CVE-2021-44879
Debian:13linux5.16.7-1DEBIAN-CVE-2021-44879
Debian:14linux5.16.7-1DEBIAN-CVE-2021-44879
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2021-44879
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2021-44879
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2021-44879

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References