CVE-2019-3817
A use-after-free flaw has been discovered in libcomps before version 0.1.10 in the way ObjMRTrees are merged.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.72%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.72% probability · 77th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- rpm/libcomps
- Source
- secalert@redhat.com
EPSS 1.7% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- 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-2019-3817Exploit, Issue Tracking, Vendor Advisory
- https://github.com/rpm-software-management/libcomps/commit/e3a5d056633677959ad924a51758876d415e7046Patch, Third Party Advisory
- https://github.com/rpm-software-management/libcomps/issues/41Exploit, Issue Tracking, Third Party Advisory
- 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-2019-3817Exploit, Issue Tracking, Vendor Advisory
- https://github.com/rpm-software-management/libcomps/commit/e3a5d056633677959ad924a51758876d415e7046Patch, Third Party Advisory
- https://github.com/rpm-software-management/libcomps/issues/41Exploit, Issue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.