#VU18107 Double free in GnuTLS - CVE-2019-3829
Published: April 1, 2019
Vulnerability identifier: #VU18107
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2019-3829
CWE-ID: CWE-415
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
GnuTLS
GnuTLS
Software vendor:
GnuTLS
GnuTLS
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a double free error in the certificate verification API when processing X.509 crtificates. A remote attacker can supply a specially crafted X.509 certificate, trigger double free error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.
External links
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3829
- https://gitlab.com/gnutls/gnutls/issues/694
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L7TJIBRJWGWSH6XIO2MXIQ3W6ES4R6I4/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WRSOL66LHP4SD3Y2ECJDOGT4K663ECDU/
- https://www.gnutls.org/security-new.html#GNUTLS-SA-2019-03-27