Use After Free Affecting python3-dnf-plugins-core package, versions <0:4.0.8-3.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-ORACLE8-PYTHON3DNFPLUGINSCORE-2544810
- published10 Apr 2022
- disclosed27 Mar 2019
Introduced: 27 Mar 2019
CVE-2019-3817 (opens in a new tab)How to fix?
Upgrade Oracle:8 python3-dnf-plugins-core to version 0:4.0.8-3.el8 or higher.
This issue was patched in ELSA-2019-3583.
NVD Description
Note: Versions mentioned in the description apply only to the upstream python3-dnf-plugins-core package and not the python3-dnf-plugins-core package as distributed by Oracle.
See How to fix? for Oracle:8 relevant fixed versions and status.
A use-after-free flaw has been discovered in libcomps before version 0.1.10 in the way ObjMRTrees are merged. An attacker, who is able to make an application read a crafted comps XML file, may be able to crash the application or execute malicious code.
References
- https://linux.oracle.com/cve/CVE-2019-3817.html
- https://linux.oracle.com/errata/ELSA-2019-3583.html
- https://access.redhat.com/errata/RHSA-2019:3583
- https://access.redhat.com/errata/RHSA-2019:3898
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3817
- https://github.com/rpm-software-management/libcomps/commit/e3a5d056633677959ad924a51758876d415e7046
- https://github.com/rpm-software-management/libcomps/issues/41