Use after free in libcomps
Priority MEDIUM 41CWE-416Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.01721 77th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed Red Hat: 2 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| libcomps | libcomps | 0.1.10 | — | No fix listed | CNA |
- libcomps Vendorlibcomps Affected 0.1.10 Fixed in — No fix listed CNA
Remediation
Red Hat 2 advisories
- RHSA-2019:3898 Released 2019-11-18 · Red Hat rating Moderatelibcomps security update
- Red Hat Enterprise Linux 7 Extras libcomps-0.1.8-13.el7, libcomps-devel-0.1.8-13.el7, libcomps-doc-0.1.8-13.el7 +2
- RHSA-2019:3583 Released 2019-11-05 · Red Hat rating Moderateyum security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 8) createrepo_c-0.11.0-3.el8, createrepo_c-devel-0.11.0-3.el8, createrepo_c-libs-0.11.0-3.el8 +1
- Red Hat Enterprise Linux BaseOS (v. 8) dnf-4.2.7-6.el8, dnf-automatic-4.2.7-6.el8, dnf-data-4.2.7-6.el8 +17
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 Extras | Fixed | RHSA-2019:3898 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2019:3583 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2019:3583 |
Timeline
- 2026-10-02 Threatist record created from CVE-2019-3817
- 2026-10-03 Alias added: GHSA-3rh7-494q-3mjq
References
Sources
- CVE-2019-3817 · CVE Program
- CVE-2019-3817 · NVD
- FIRST EPSS
- GHSA-3rh7-494q-3mjq · GitHub Advisory Database · CC BY 4.0
- CVE-2019-3817 · Red Hat security data · CC BY 4.0
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