Out-of-bounds Read Affecting yum package, versions <0:4.2.7-6.el8
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-RHEL8-YUM-3499367
- published26 Jul 2021
- disclosed22 Nov 2018
Introduced: 22 Nov 2018
CVE-2018-20534 (opens in a new tab)How to fix?
Upgrade RHEL:8 yum to version 0:4.2.7-6.el8 or higher.
This issue was patched in RHSA-2019:3583.
NVD Description
Note: Versions mentioned in the description apply only to the upstream yum package and not the yum package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
There is an illegal address access at ext/testcase.c in libsolv.a in libsolv through 0.7.2 that will cause a denial of service. NOTE: third parties dispute this issue stating that the issue affects the test suite and not the underlying library. It cannot be exploited in any real-world application
References
- https://bugzilla.suse.com/show_bug.cgi?id=1120631
- https://access.redhat.com/security/cve/CVE-2018-20534
- https://bugzilla.redhat.com/show_bug.cgi?id=1652604
- https://github.com/openSUSE/libsolv/pull/291
- https://access.redhat.com/errata/RHSA-2019:3583
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00057.html
- https://usn.ubuntu.com/3916-1/