CVE-2019-3817: Use After Free
First published: Mon Jan 21 2019(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/libcomps | <0.1.10 | 0.1.10 |
| Rpm Libcomps | <0.1.10 |
Remedy
https://github.com/rpm-software-management/libcomps/commit/e3a5d056633677959ad924a51758876d415e7046
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Reference Links
- 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
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1668681
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1668680
- https://access.redhat.com/security/cve/cve-2019-3817
- https://bugzilla.redhat.com/show_bug.cgi?id=1668005
Frequently Asked Questions
What is CVE-2019-3817?
CVE-2019-3817 is a use-after-free vulnerability in libcomps before version 0.1.10.
How does CVE-2019-3817 affect systems?
CVE-2019-3817 allows an attacker to crash an application or execute malicious code by manipulating a crafted comps XML file.
What is the severity of CVE-2019-3817?
CVE-2019-3817 has a severity rating of 8.8 (high).
Which software versions are affected by CVE-2019-3817?
Versions of libcomps before 0.1.10 are affected by CVE-2019-3817.
How can I fix CVE-2019-3817?
To fix CVE-2019-3817, update libcomps to version 0.1.10 or higher.
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