CVE-2015-5334

CRITICAL

LibreSSL < 2.3.1 - Out-of-bounds Write via Crafted X.509 Certificate

Title source: llm

Description

Off-by-one error in the OBJ_obj2txt function in LibreSSL before 2.3.1 allows remote attackers to 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. Note: this vulnerability exists because of an incorrect fix for CVE-2014-3508.

References (5)

Core 5

Core References

Exploit, Third Party Advisory, VDB Entry x_refsource_misc

http://packetstormsecurity.com/files/133998/Qualys-Security-Advisory-LibreSSL-Leak-Overflow.html

Exploit, Mailing List, Third Party Advisory x_refsource_misc

http://seclists.org/fulldisclosure/2015/Oct/75

Broken Link x_refsource_misc

http://www.securityfocus.com/archive/1/archive/1/536692/100/0/threaded

Mailing List, Third Party Advisory x_refsource_misc

http://lists.opensuse.org/opensuse-updates/2015-10/msg00050.html

Release Notes, Vendor Advisory x_refsource_misc

http://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.3.1-relnotes.txt

Scores

CVSS v3 9.8

EPSS 0.0991

EPSS Percentile 93.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-787

Status published

Products (2)

openbsd/libressl < 2.3.1

opensuse/opensuse 13.2

Published Jan 23, 2020

Tracked Since Feb 18, 2026