Use-after-free in libcomps - CVE-2019-3817
Published: November 18, 2019
Vulnerability identifier: #VU22821
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-3817
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when merging two ObjMRTrees while processing XML files in libcomps. A remote attacker can create a specially crafted XML file, pass it to the application, trigger a use-after-free error and crash the application or execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Affected software
libcomps
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power
Red Hat Enterprise Linux for x86_64
SUSE Linux
Opensuse
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power
Red Hat Enterprise Linux for x86_64
SUSE Linux
Opensuse
How to mitigate CVE-2019-3817
Install updates from vendor's website.
libcomps - update to 0.1.10