PT-2015-6243 · Gnu+5 · Gnu Libtasn1+5

Hanno Böck · Published 2015-05-01 · Updated 2024-06-15 · CVE-2015-3622

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions GNU Libtasn1 versions prior to 4.5

Description The issue allows remote attackers to cause a denial of service, specifically an out-of-bounds heap read, by providing a crafted certificate. This is related to the asn1 extract der octet function in lib/decoding.c.

Recommendations For GNU Libtasn1 versions prior to 4.5, update to version 4.5 or later to resolve the issue. As a temporary workaround, consider restricting the processing of crafted certificates to minimize the risk of exploitation.

Exploit

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2015-1469

CESA-2017_1860

CVE-2015-3622

DSA-3256-1

MGASA-2015-0200

OPENSUSE-SU-2024:10414-1

RHSA-2017:1860

RHSA-2017_1860

SUSE-SU-2015:1518-1

SUSE-SU-2015_1518-1

SUSE-SU-2016:1600-1

SUSE-SU-2016:1601-1

SUSE-SU-2016_1600-1

SUSE-SU-2016_1601-1

SUSE-SU-2017:2699-1

SUSE-SU-2017:2700-1

USN-2604-1

Affected Products

Alt Linux

Centos

Gnu Libtasn1

Red Hat

Suse

Ubuntu

References · 72

• 🔥 http://seclists.org/fulldisclosure/2015/Apr/109 · Exploit
• 🔥 http://packetstormsecurity.com/files/131711/libtasn1-Heap-Overflow.html · Exploit
• https://ubuntu.com/security/CVE-2015-3622 · Vendor Advisory
• http://lists.opensuse.org/opensuse-updates/2016-06/msg00047.html · Vendor Advisory
• http://lists.opensuse.org/opensuse-updates/2015-08/msg00014.html · Vendor Advisory
• https://security-tracker.debian.org/tracker/DSA-3256-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2015-3622 · Vendor Advisory
• http://lists.opensuse.org/opensuse-updates/2016-06/msg00097.html · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2806 · Security Note
• https://errata.altlinux.org/ALT-PU-2015-1469 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2017-1860.html · Vendor Advisory
• http://ubuntu.com/usn/USN-2604-1 · Vendor Advisory
• https://security.gentoo.org/glsa/201509-04 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2015-3622 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2015-3622 · Vendor Advisory