#VU34854 Memory leak in LibreSSL - CVE-2015-5333
Published: January 23, 2020 / Updated: August 8, 2020
Vulnerability identifier: #VU34854
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2015-5333
CWE-ID: CWE-401
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
LibreSSL
LibreSSL
Software vendor:
OpenBSD
OpenBSD
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the OBJ_obj2txt function in LibreSSL before 2.3.1 allows remote attackers to cause a denial of service (memory consumption) via a large number of ASN.1 object identifiers in X.509 certificates. A remote attacker can perform a denial of service attack.
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://www.securityfocus.com/archive/1/archive/1/536692/100/0/threaded