CVE-2019-3817 — A use-after-free flaw has been discovered in libcomps before version 0
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.
Published
2019-03-27T12:25:40.000Z
Last modified
2024-08-04T19:19:18.587Z
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
01What is this vulnerability?
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.
02Affected products
| Vendor | Product | Versions |
|---|
| libcomps | libcomps | 0.1.10 |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2019-03-27T12:25:40.000Z
- Last modified: 2024-08-04T19:19:18.587Z
09References
- bugzilla.redhat.com — https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3817
- github.com — https://github.com/rpm-software-management/libcomps/issues/41
- github.com — https://github.com/rpm-software-management/libcomps/commit/e3a5d056633677959ad92…
- access.redhat.com — https://access.redhat.com/errata/RHSA-2019:3583
- access.redhat.com — https://access.redhat.com/errata/RHSA-2019:3898
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