CVE-2015-3622

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 32.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2015-05-12 · updated 2026-06-17
Weakness: CWE-119

Description

The _asn1_extract_der_octet function in lib/decoding.c in GNU Libtasn1 before 4.5 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted certificate.

Affected products

Fedoraproject Fedora: 21
GnuTLS libtasn1: through 4.4
Opensuse: 13.2

References

http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158225.html
http://lists.opensuse.org/opensuse-updates/2015-08/msg00014.html
http://lists.opensuse.org/opensuse-updates/2016-06/msg00047.html
http://lists.opensuse.org/opensuse-updates/2016-06/msg00097.html
http://packetstormsecurity.com/files/131711/libtasn1-Heap-Overflow.html
http://seclists.org/fulldisclosure/2015/Apr/109
http://www.debian.org/security/2015/dsa-3256
http://www.mandriva.com/security/advisories?name=MDVSA-2015:232
http://www.securityfocus.com/bid/74419
http://www.securitytracker.com/id/1032246
http://www.ubuntu.com/usn/USN-2604-1
https://access.redhat.com/errata/RHSA-2017:1860

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