Buffer overflow in Gnu Libtasn1
CVE-2015-3622
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.
Vulnerability class: Buffer Overflow
EPSS: 0.061 (90.9th percentile) — read the EPSS interpretation.
Affected products
- Gnu Libtasn1
- Fedoraproject Fedora — versions 21
- Opensuse — versions 13.2
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- GLSA-201509-04 (vendor-advisory, x_refsource_GENTOO)
- 1032246 (vdb-entry, x_refsource_SECTRACK)
- FEDORA-2015-7288 (x_refsource_FEDORA, vendor-advisory)
- RHSA-2017:1860 (x_refsource_REDHAT, vendor-advisory)
- 20150430 Heap overflow / invalid read in Libtasn1 before 4.5 (TFPA 005/2015) (mailing-list, Exploit, x_refsource_FULLDISC)
- DSA-3256 (vendor-advisory, x_refsource_DEBIAN)
- [help-libtasn1] 20150429 GNU Libtasn1 4.5 released (mailing-list, x_refsource_MLIST)
- openSUSE-SU-2016:1567 (vendor-advisory, x_refsource_SUSE)
- MDVSA-2015:232 (vendor-advisory, x_refsource_MANDRIVA)
- openSUSE-SU-2015:1372 (vendor-advisory, x_refsource_SUSE)
Frequently asked questions
- What is CVE-2015-3622?
- CVE-2015-3622 is a vulnerability in Gnu Libtasn1, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2015-05-12.
- Is CVE-2015-3622 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.