CVE-2016-4008 Information

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.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://git.savannah.gnu.org/gitweb/?p=libtasn1.git;a=commit;h=a6e0a0b58f5cdaf4e9beca5bce69c09808cbb625 http://git.savannah.gnu.org/gitweb/?p=libtasn1.git;a=commit;h=f435825c0f527a8e52e6ffbc3ad0bc60531d537e http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182299.html http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182907.html http://lists.fedoraproject.org/pipermail/package-announce/2016-April/183221.html http://lists.opensuse.org/opensuse-updates/2016-06/msg00047.html http://lists.opensuse.org/opensuse-updates/2016-06/msg00097.html http://www.debian.org/security/2016/dsa-3568 http://www.openwall.com/lists/oss-security/2016/04/11/3 http://www.ubuntu.com/usn/USN-2957-1 http://www.ubuntu.com/usn/USN-2957-2 https://lists.gnu.org/archive/html/help-libtasn1/2016-04/msg00009.html https://security.gentoo.org/glsa/201703-05

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.9