CVE-2018-20533

NameCVE-2018-20533
DescriptionThere is a NULL pointer dereference at ext/testcase.c (function testcase_str2dep_complex) in libsolvext.a in libsolv through 0.7.2 that will cause a denial of service.
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)
NVD severitymedium (attack range: remote)
Debian Bugs923002

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libsolv (PTS)jessie0.6.5-1vulnerable
stretch0.6.24-1+deb9u1vulnerable
bullseye, sid, buster0.6.35-2vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libsolvsource(unstable)(unfixed)low923002

Notes

[buster] - libsolv <no-dsa> (Minor issue)
[stretch] - libsolv <ignored> (Minor issue)
[jessie] - libsolv <ignored> (Minor issue)
https://bugzilla.redhat.com/show_bug.cgi?id=1652599
https://github.com/openSUSE/libsolv/pull/291
https://github.com/openSUSE/libsolv/commit/4830af9d979d3685de538b80fbeba51ad590525e

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