Use-after-free in libcomps - CVE-2019-3817
Published: November 18, 2019
Vulnerability identifier: #VU22821
CSH Severity: High
CVSS v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2019-3817
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: rpm-software-management
Affected software:
libcomps
libcomps
Detailed vulnerability description
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.
How to mitigate CVE-2019-3817
Install updates from vendor's website.