NULL Pointer Dereference Affecting zypper package, versions <1.14.28-3.18.6
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about NULL Pointer Dereference vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-SLES150-ZYPPER-2741046
- published14 Apr 2022
- disclosed31 Jul 2019
Introduced: 31 Jul 2019
CVE-2018-20533 (opens in a new tab)How to fix?
Upgrade SLES:15.0 zypper to version 1.14.28-3.18.6 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream zypper package and not the zypper package as distributed by SLES.
See How to fix? for SLES:15.0 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
- https://www.suse.com/security/cve/CVE-2018-20533.html
- https://bugzilla.suse.com/1120630
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00057.html
- https://access.redhat.com/errata/RHSA-2019:2290
- https://bugzilla.redhat.com/show_bug.cgi?id=1652599
- https://github.com/openSUSE/libsolv/pull/291
- https://usn.ubuntu.com/3916-1/