CVE-2017-8842

NameCVE-2017-8842
DescriptionThe bufRead::get() function in libzpaq/libzpaq.h in liblrzip.so in lrzip 0.631 allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted archive.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2725-1, ELA-597-1
Debian Bugs863156

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
lrzip (PTS)jessie, jessie (lts)0.616-1+deb8u2fixed
stretch (security), stretch (lts), stretch0.631-1+deb9u3fixed
buster, buster (security)0.631+git180528-1+deb10u1fixed
bullseye (security), bullseye0.641-1+deb11u1fixed
bookworm0.651-2fixed
sid, trixie0.651-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
lrzipsourcejessie0.616-1+deb8u1ELA-597-1
lrzipsourcestretch0.631-1+deb9u1DLA-2725-1
lrzipsource(unstable)0.631+git180517-1unimportant863156

Notes

https://github.com/ckolivas/lrzip/issues/66
https://blogs.gentoo.org/ago/2017/05/07/lrzip-divide-by-zero-in-bufreadget-libzpaq-h/
https://github.com/ckolivas/lrzip/commit/38386bd482c0a8102a79958cb3eddcb97a167ca3 (v0.640)
Crash in CLI tool, no security implications

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