CVE-2021-27347

NameCVE-2021-27347
DescriptionUse after free in lzma_decompress_buf function in stream.c in Irzip 0.631 allows attackers to cause Denial of Service (DoS) via a crafted compressed file.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2981-1
Debian Bugs990583

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
lrzip (PTS)stretch0.631-1vulnerable
stretch (security)0.631-1+deb9u3fixed
buster0.631+git180528-1vulnerable
buster (security)0.631+git180528-1+deb10u1fixed
bullseye0.641-1fixed
bullseye (security)0.641-1+deb11u1fixed
bookworm, sid0.651-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
lrzipsourcestretch0.631-1+deb9u2DLA-2981-1
lrzipsourcebuster0.631+git180528-1+deb10u1
lrzipsource(unstable)0.640-1unimportant990583

Notes

https://github.com/ckolivas/lrzip/issues/165
https://github.com/ckolivas/lrzip/commit/be884d09e09b00fbddd31b75dc1f4736d72006a8 (v0.640)
Crash in CLI tool, no security impact
See CVE-2022-26291 follow-up related to clear_rulist()

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