CVE-2016-4008 The _asn1_extract_der_octet function in lib/decoding.c in GNU Libtasn1 before 4.8, when used without the ASN1_DECODE_FLAG_STRICT_DER flag, allows remote attackers to cause a denial of service (infinit...
MediumCVSS 5.9
EPSS 29.4%
- Published
- Updated
- Exploit status
- No public exploit known
Description
The _asn1_extract_der_octet function in lib/decoding.c in GNU Libtasn1 before 4.8, when used without the ASN1_DECODE_FLAG_STRICT_DER flag, allows remote attackers to cause a denial of service (infinite recursion) via a crafted certificate.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/libtasn1-6(Debian:12) | < 4.8-1 | 4.8-1 |
| debian/libtasn1-6(Debian:13) | < 4.8-1 | 4.8-1 |
| debian/libtasn1-6(Debian:14) | < 4.8-1 | 4.8-1 |
| Canonical Ubuntu Linux | = 12.04 | No fix listed |
| Canonical Ubuntu Linux | = 14.04 | No fix listed |
| Canonical Ubuntu Linux | = 15.10 | No fix listed |
| Canonical Ubuntu Linux | = 16.04 | No fix listed |
| opensuse | = 13.2 | No fix listed |
| GNU libtasn1 | <= 4.7 | No fix listed |
| fedoraproject fedora | = 22 | No fix listed |
| fedoraproject fedora | = 23 | No fix listed |
| fedoraproject fedora | = 24 | No fix listed |
References
- Debian Security Tracker CVE-2016-4008 vendor-advisory
- git.savannah.gnu.org
- git.savannah.gnu.org
- FEDORA-2016-048ffb6235 vendor-advisory
- FEDORA-2016-383b8250e6 vendor-advisory
- FEDORA-2016-96bfd9e873 vendor-advisory
- openSUSE-SU-2016:1567 vendor-advisory
- openSUSE-SU-2016:1674 vendor-advisory
- DSA-3568 vendor-advisory
- [oss-security] 20160411 Infinite loops parsing malicious DER certificates in libtasn1 4.7 mailing-list
- USN-2957-1 vendor-advisory
- USN-2957-2 vendor-advisory
- [help-libtasn1] 20160411 GNU Libtasn1 4.8 released mailing-list
- GLSA-201703-05 vendor-advisory