CVE-2019-3817

A use-after-free flaw has been discovered in libcomps before version 0.1.10 in the way ObjMRTrees...

7.5 HighFix available

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.72%Up 0.5 points since Apr 14, 2021

What each source reports

CVE List Score used 7.5

Record: CVE-2019-3817
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-416
Updated: 2026-11-02

EUVDEUVD-2019-13440 7.5

Record: EUVD-2019-13440
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-3rh7-494q-3mjq 8.8

A use-after-free flaw has been discovered in libcomps before version 0.1.10 in the way ObjMRTrees...

Record: GHSA-3rh7-494q-3mjq
CVSS 3.0: 8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-416
Updated: 2026-11-02

NVD 7.5

Record: CVE-2019-3817
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 3.0: 8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0: 6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness: CWE-416
Updated: 2026-11-02

OSV 8.8

Record: CVE-2019-3817
CVSS 3.0: 8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVRHSA-2019:3583 7.5

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

Record: RHSA-2019:3583
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

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OSVRHSA-2019:3898 7.5

Red Hat Security Advisory: libcomps security update

Record: RHSA-2019:3898
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVopenSUSE-SU-2019:0323-1 No score

Security update for libcomps

This update for libcomps fixes the following issue:

Security issue fixed:

CVE-2019-3817: Fixed a use-after-free vulnerability in comps_objmradix.c:comps_objmrtree_unite() function where could allow to application crash or code execution (bsc#1122841).

Record: openSUSE-SU-2019:0323-1
Updated: 2026-11-02

OSVopenSUSE-SU-2019:0328-1 No score

Security update for libcomps

This update for libcomps fixes the following issue:

Security issue fixed:

CVE-2019-3817: Fixed a use-after-free vulnerability in comps_objmradix.c:comps_objmrtree_unite() function where could allow to application crash or code execution (bsc#1122841).

This update was imported from the openSUSE:Leap:15.0:Update update project.

Record: openSUSE-SU-2019:0328-1
Updated: 2026-11-02

OSVopenSUSE-SU-2024:10929-1 No score

libcomps-devel-0.1.17-1.2 on GA media

These are all security issues fixed in the libcomps-devel-0.1.17-1.2 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:10929-1
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`createrepo_c` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:0.11.0-3.el8	0:0.11.0-3.el8
`createrepo_c-debuginfo` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:0.11.0-3.el8	0:0.11.0-3.el8
`createrepo_c-debugsource` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:0.11.0-3.el8	0:0.11.0-3.el8
`createrepo_c-devel` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:0.11.0-3.el8	0:0.11.0-3.el8
`createrepo_c-libs` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:0.11.0-3.el8	0:0.11.0-3.el8
`createrepo_c-libs-debuginfo` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:0.11.0-3.el8	0:0.11.0-3.el8
`python3-createrepo_c` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:0.11.0-3.el8	0:0.11.0-3.el8
`python3-createrepo_c-debuginfo` Red Hat:enterprise_linux:8::appstream From an advisory covering 2 CVEs	before 0:0.11.0-3.el8	0:0.11.0-3.el8
`dnf` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:4.2.7-6.el8	0:4.2.7-6.el8
`dnf-automatic` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:4.2.7-6.el8	0:4.2.7-6.el8

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Affected packages
Package	Affected	Fixed
`dnf-data` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:4.2.7-6.el8	0:4.2.7-6.el8
`dnf-plugins-core` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:4.0.8-3.el8	0:4.0.8-3.el8
`libcomps` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.1.11-2.el8	0:0.1.11-2.el8
`libcomps-debuginfo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.1.11-2.el8	0:0.1.11-2.el8
`libcomps-debugsource` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.1.11-2.el8	0:0.1.11-2.el8
`libcomps-devel` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.1.11-2.el8	0:0.1.11-2.el8
`libdnf` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.35.1-8.el8	0:0.35.1-8.el8
`libdnf-debuginfo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.35.1-8.el8	0:0.35.1-8.el8
`libdnf-debugsource` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.35.1-8.el8	0:0.35.1-8.el8
`librepo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:1.10.3-3.el8	0:1.10.3-3.el8
`librepo-debuginfo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:1.10.3-3.el8	0:1.10.3-3.el8
`librepo-debugsource` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:1.10.3-3.el8	0:1.10.3-3.el8
`librhsm` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.0.3-3.el8	0:0.0.3-3.el8
`librhsm-debuginfo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.0.3-3.el8	0:0.0.3-3.el8
`librhsm-debugsource` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.0.3-3.el8	0:0.0.3-3.el8
`libsolv` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.7.4-3.el8	0:0.7.4-3.el8
`libsolv-debuginfo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.7.4-3.el8	0:0.7.4-3.el8
`libsolv-debugsource` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.7.4-3.el8	0:0.7.4-3.el8
`libsolv-demo-debuginfo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.7.4-3.el8	0:0.7.4-3.el8
`libsolv-tools-debuginfo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.7.4-3.el8	0:0.7.4-3.el8
`microdnf` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:3.0.1-3.el8	0:3.0.1-3.el8
`microdnf-debuginfo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:3.0.1-3.el8	0:3.0.1-3.el8
`microdnf-debugsource` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:3.0.1-3.el8	0:3.0.1-3.el8
`perl-solv-debuginfo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.7.4-3.el8	0:0.7.4-3.el8
`python3-dnf` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:4.2.7-6.el8	0:4.2.7-6.el8
`python3-dnf-plugin-versionlock` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:4.0.8-3.el8	0:4.0.8-3.el8
`python3-dnf-plugins-core` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:4.0.8-3.el8	0:4.0.8-3.el8
`python3-hawkey` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.35.1-8.el8	0:0.35.1-8.el8
`python3-hawkey-debuginfo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.35.1-8.el8	0:0.35.1-8.el8
`python3-libcomps` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.1.11-2.el8	0:0.1.11-2.el8
`python3-libcomps-debuginfo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.1.11-2.el8	0:0.1.11-2.el8
`python3-libdnf` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.35.1-8.el8	0:0.35.1-8.el8
`python3-libdnf-debuginfo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.35.1-8.el8	0:0.35.1-8.el8
`python3-librepo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:1.10.3-3.el8	0:1.10.3-3.el8
`python3-librepo-debuginfo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:1.10.3-3.el8	0:1.10.3-3.el8
`python3-solv-debuginfo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.7.4-3.el8	0:0.7.4-3.el8
`ruby-solv-debuginfo` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:0.7.4-3.el8	0:0.7.4-3.el8
`yum` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:4.2.7-6.el8	0:4.2.7-6.el8
`yum-utils` Red Hat:enterprise_linux:8::baseos From an advisory covering 2 CVEs	before 0:4.0.8-3.el8	0:4.0.8-3.el8
`libcomps` Red Hat:rhel_extras_other:7	before 0:0.1.8-13.el7	0:0.1.8-13.el7
`libcomps-debuginfo` Red Hat:rhel_extras_other:7	before 0:0.1.8-13.el7	0:0.1.8-13.el7
`libcomps-devel` Red Hat:rhel_extras_other:7	before 0:0.1.8-13.el7	0:0.1.8-13.el7
`libcomps-doc` Red Hat:rhel_extras_other:7	before 0:0.1.8-13.el7	0:0.1.8-13.el7
`python-libcomps-doc` Red Hat:rhel_extras_other:7	before 0:0.1.8-13.el7	0:0.1.8-13.el7
`python2-libcomps` Red Hat:rhel_extras_other:7	before 0:0.1.8-13.el7	0:0.1.8-13.el7
`libcomps` SUSE:Package Hub 15	before 0.1.8-bp150.3.3.1	0.1.8-bp150.3.3.1

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-3817 is a high vulnerability (CVSS 7.5) in Libcomps, published March 15, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.72%, the 77th percentile. Fixed in libcomps 0:0.1.8-13.el7.

References

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