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No exploitation reportedFix available

CVE-2019-3817

No exploitation reported by the sources we read.

  • Published2019-03-27
  • Fixed in0.1.10
  • WeaknessCWE-416

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2019-03-2713:29CVE publishedNVD

Versions per branch

NVD
Rpm libcomps
BranchAffectedFixed in
0.1< 0.1.100.1.10

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • createrepo_cRed Hat:enterprise_linux:8::appstreamall versions · fixed in 0:0.11.0-3.el8and 7 other packages
  • dnfRed Hat:enterprise_linux:8::baseosall versions · fixed in 0:4.2.7-6.el8and 4 other packages
  • libcompsSUSE:Package Hub 15all versions · fixed in 0.1.8-bp150.3.3.1
  • libcompsRed Hat:rhel_extras_other:7all versions · fixed in 0:0.1.8-13.el7and 5 other packages
  • libcompsRed Hat:enterprise_linux:8::baseosall versions · fixed in 0:0.1.11-2.el8and 5 other packages
  • libdnfRed Hat:enterprise_linux:8::baseosall versions · fixed in 0:0.35.1-8.el8and 6 other packages
  • librepoRed Hat:enterprise_linux:8::baseosall versions · fixed in 0:1.10.3-3.el8and 4 other packages
  • librhsmRed Hat:enterprise_linux:8::baseosall versions · fixed in 0:0.0.3-3.el8and 2 other packages

3 more package ranges on OSV.dev

Vendor advisories

  • CVE-2019-3817 Red Hat Product Security224 products fixed

    libcomps: use after free when merging two objmrtrees

  • RHSA-2019:3898 Red Hat Product Security15 products fixed

    Red Hat Security Advisory: libcomps security update

  • RHSA-2019:3583 Red Hat Product Security209 products fixed

    Red Hat Security Advisory: yum security, bug fix, and enhancement update

Full record on NVD

Fix

  1. Update Rpm libcomps to 0.1.10
  2. Vendor fix Red Hat Product Security RHSA-2019:3898 · 29 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 3.07.5known since 2026-10-23
  • NVDCVSS 3.08.8read 2026-10-23
  • NVDCVSS 2.06.8read 2026-10-23
  • CNAweakness (CWE)CWE-416known since 2026-10-23
  • NVDweakness (CWE)CWE-416read 2026-10-23
  • FIRST EPSSEPSS score1.7 %2026-11-08
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2019-03-27
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-3rh7-494q-3mjq

Frequently asked questions

What is CVE-2019-3817?

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.

Is CVE-2019-3817 actively exploited?

Active exploitation of CVE-2019-3817 has not been confirmed. Its EPSS score was 1.7% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-3817?

CVE-2019-3817 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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