Use-after-free in Libxml2 - CVE-2016-4658
Published: October 13, 2021
Vulnerability identifier: #VU57346
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2016-4658
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Gnome Development Team
Affected software:
Libxml2
Libxml2
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error, caused by using namespace nodes in XPointer ranges within the xpointer.c in libxml2. A remote attackers can pass specially crated XML document to he application, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
How to mitigate CVE-2016-4658
Install update from vendor's website.
Sources
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00008.html
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00010.html
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00011.html
- http://www.securityfocus.com/bid/93054
- http://www.securitytracker.com/id/1036858
- http://www.securitytracker.com/id/1038623
- https://git.gnome.org/browse/libxml2/commit/?id=c1d1f7121194036608bf555f08d3062a36fd344b
- https://security.gentoo.org/glsa/201701-37
- https://support.apple.com/HT207141
- https://support.apple.com/HT207142
- https://support.apple.com/HT207143
- https://support.apple.com/HT207170