This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2021-20197 →

DEBIAN-CVE-2021-20197

There is an open race window when writing output in the following utilities in GNU binutils version 2.35 and earlier:ar, objcopy, strip, ranlib. When...

Original description

The description as published by the source.

There is an open race window when writing output in the following utilities in GNU binutils version 2.35 and earlier:ar, objcopy, strip, ranlib. When these utilities are run as a privileged user (presumably as part of a script updating binaries across different users), an unprivileged user can trick these utilities into getting ownership of arbitrary files through a symlink.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 binutils

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.37-3"}]}]

Debian:13 binutils

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.37-3"}]}]

Debian:14 binutils

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.37-3"}]}]

References

advisory security-tracker.debian.org