Synopsis
Low: libsolv security and bug fix update
Type/Severity
Security Advisory: Low
Topic
An update for libsolv is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
The libsolv packages provide a library for resolving package dependencies using a satisfiability algorithm.
Security Fix(es):
- libsolv: NULL pointer dereference in function testcase_read (CVE-2018-20532)
- libsolv: NULL pointer dereference in function testcase_str2dep_complex (CVE-2018-20533)
- libsolv: illegal address access in pool_whatprovides in src/pool.h (CVE-2018-20534)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.
Solution
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
Affected Products
-
Red Hat Enterprise Linux Server 7 x86_64
-
Red Hat Enterprise Linux Workstation 7 x86_64
-
Red Hat Enterprise Linux Desktop 7 x86_64
-
Red Hat Enterprise Linux for IBM z Systems 7 s390x
-
Red Hat Enterprise Linux for Power, big endian 7 ppc64
-
Red Hat Enterprise Linux for Scientific Computing 7 x86_64
-
Red Hat Enterprise Linux for Power, little endian 7 ppc64le
Fixes
- BZ - 1665532 - CVE-2018-20532 libsolv: NULL pointer dereference in function testcase_read
- BZ - 1665535 - CVE-2018-20533 libsolv: NULL pointer dereference in function testcase_str2dep_complex
- BZ - 1665538 - CVE-2018-20534 libsolv: illegal address access in pool_whatprovides in src/pool.h
- BZ - 1668256 - "dnf upgrade" reinstalls kernel packages reporting it cannot install best update candidate
CVEs
References
Vulmon