NULL Pointer Dereference Affecting libsolv package, versions <0.6.5-2ubuntu1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU2004-LIBSOLV-577907
- published28 Dec 2018
- disclosed28 Dec 2018
Introduced: 28 Dec 2018
CVE-2018-20533 (opens in a new tab)How to fix?
Upgrade Ubuntu:20.04 libsolv to version 0.6.5-2ubuntu1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libsolv package and not the libsolv package as distributed by Ubuntu.
See How to fix? for Ubuntu:20.04 relevant fixed versions and status.
There 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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-20533
- https://security-tracker.debian.org/tracker/CVE-2018-20533
- https://github.com/openSUSE/libsolv/pull/291
- https://bugzilla.redhat.com/show_bug.cgi?id=1652599
- https://access.redhat.com/errata/RHSA-2019:2290
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00057.html
- https://usn.ubuntu.com/3916-1/