CVE-2018-18584

NameCVE-2018-18584
DescriptionIn mspack/cab.h in libmspack before 0.8alpha and cabextract before 1.8, the CAB block input buffer is one byte too small for the maximal Quantum block, leading to an out-of-bounds write.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-1555-1
Debian Bugs911640

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
cabextract (PTS)buster1.9-1fixed
bookworm, bullseye1.9-3fixed
trixie1.11-1fixed
sid1.11-2fixed
libmspack (PTS)buster0.10.1-1fixed
bullseye0.10.1-2fixed
trixie, bookworm0.11-1fixed
sid0.11-1.1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
cabextractsource(unstable)1.4-5
libmspacksourcejessie0.5-1+deb8u3DLA-1555-1
libmspacksourcestretch0.5-1+deb9u3
libmspacksource(unstable)0.8-1911640

Notes

Starting with 1.4-5 cabextract uses the mspack system library
https://github.com/kyz/libmspack/commit/40ef1b4093d77ad3a5cfcee1f5cb6108b3a3bcc2
https://www.openwall.com/lists/oss-security/2018/10/22/1

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