This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2021-33643 →

DEBIAN-CVE-2021-33643

An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longli...

Original description

The description as published by the source.

An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longlink, causing an out-of-bounds read.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 libtar

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.20-8+deb12u1"}]}]

References

advisory security-tracker.debian.org