Vulnerability 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.
CVSS Score
4.3
MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Opensuse | Opensuse | 13.2 |
| Fedoraproject | Fedora | 21 |
| Gnu | Libtasn1 | <= 4.4 |
Related Weaknesses (CWE)
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.htmlExploit
- http://seclists.org/fulldisclosure/2015/Apr/109Exploit
- 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
- https://lists.gnu.org/archive/html/help-libtasn1/2015-04/msg00000.html
- https://security.gentoo.org/glsa/201509-04
- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158225.html
FAQ
What is CVE-2015-3622?
CVE-2015-3622 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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.
How severe is CVE-2015-3622?
CVE-2015-3622 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-3622?
Check the references section above for vendor advisories and patch information. Affected products include: Opensuse Opensuse, Fedoraproject Fedora, Gnu Libtasn1.