Descriptionfirehol in firehol 1.256 allows local users to overwrite arbitrary files via a symlink attack on (1) /tmp/.firehol-tmp-#####-*-* and (2) /tmp/firehol.conf temporary files. NOTE: the vendor disputes this vulnerability, stating that an attack "would require an attacker to create 1073741824*PID-RANGE symlinks.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs496424

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firehol (PTS)buster3.1.6+ds-8vulnerable
bookworm, sid, trixie3.1.7+ds-2.1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


attack unfeasible because of $$-${RANDOM}-${RANDOM}

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