#VU34855 Input validation error in LibreSSL - CVE-2015-5334
Published: January 23, 2020 / Updated: August 8, 2020
Vulnerability identifier: #VU34855
Vulnerability risk: High
CVSSv4.0: 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-2015-5334
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
LibreSSL
LibreSSL
Software vendor:
OpenBSD
OpenBSD
Description
The vulnerability allows remote attackers to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (program crash) or possible execute arbitrary code via a crafted X.509 certificate, which triggers a stack-based buffer overflow.
Remediation
Update to version 2.3.1.
External links
- http://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.3.1-relnotes.txt
- http://lists.opensuse.org/opensuse-updates/2015-10/msg00050.html
- http://packetstormsecurity.com/files/133998/Qualys-Security-Advisory-LibreSSL-Leak-Overflow.html
- http://seclists.org/fulldisclosure/2015/Oct/75
- http://www.securityfocus.com/archive/1/archive/1/536692/100/0/threaded