CVE-2016-4008

Summary

CVE	CVE-2016-4008
State	PUBLISHED
Assigner	mitre
Source Priority	CVE Program / NVD first with legacy fallback
Published	2016-05-05 18:59:10 UTC
Updated	2026-05-06 22:30:45 UTC
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.

Risk And Classification

Primary CVSS: v3.0 5.9 MEDIUM from [email protected]

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

Problem Types: CWE-399 | n/a

Version	Source	Type	Score	Severity	Vector
3.0	[email protected]	Primary	5.9	MEDIUM	`CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H`
2.0	[email protected]	Primary	4.3		`AV:N/AC:M/Au:N/C:N/I:N/A:P`

CVSS v3.0 Breakdown

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

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

CVSS v2.0 Breakdown

Access Vector

Network

Access Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

AV:N/AC:M/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Canonical	Ubuntu Linux	12.04	All	All	All
Operating System	Canonical	Ubuntu Linux	14.04	All	All	All
Operating System	Canonical	Ubuntu Linux	15.10	All	All	All
Operating System	Canonical	Ubuntu Linux	16.04	All	All	All
Operating System	Fedoraproject	Fedora	22	All	All	All
Operating System	Fedoraproject	Fedora	23	All	All	All
Operating System	Fedoraproject	Fedora	24	All	All	All
Application	Gnu	Libtasn1	All	All	All	All
Operating System	Opensuse	Opensuse	13.2	All	All	All

Vendor Declared Affected Products

Source	Vendor	Product	Version	Platforms
CNA	Na	N/a	affected n/a	Not specified

References

Reference	Source	Link	Tags
USN-2957-1: Libtasn1 vulnerability \| Ubuntu	af854a3a-2127-422b-91ae-364da2661108	www.ubuntu.com
[SECURITY] Fedora 23 Update: libtasn1-4.8-1.fc23	af854a3a-2127-422b-91ae-364da2661108	lists.fedoraproject.org
GNU Libtasn1: Denial of Service (GLSA 201703-05) — Gentoo security	af854a3a-2127-422b-91ae-364da2661108	security.gentoo.org
USN-2957-2: Libtasn1 vulnerability \| Ubuntu	af854a3a-2127-422b-91ae-364da2661108	www.ubuntu.com
openSUSE-SU-2016:1567-1: moderate: Security update for libtasn1	af854a3a-2127-422b-91ae-364da2661108	lists.opensuse.org
[SECURITY] Fedora 24 Update: libtasn1-4.8-1.fc24	af854a3a-2127-422b-91ae-364da2661108	lists.fedoraproject.org
Debian -- Security Information -- DSA-3568-1 libtasn1-6	af854a3a-2127-422b-91ae-364da2661108	www.debian.org
Savannah Git Hosting - libtasn1.git/commit	af854a3a-2127-422b-91ae-364da2661108	git.savannah.gnu.org
oss-security - Infinite loops parsing malicious DER certificates in libtasn1 4.7	af854a3a-2127-422b-91ae-364da2661108	www.openwall.com
GNU Libtasn1 4.8 released	af854a3a-2127-422b-91ae-364da2661108	lists.gnu.org
[SECURITY] Fedora 22 Update: libtasn1-4.8-1.fc22	af854a3a-2127-422b-91ae-364da2661108	lists.fedoraproject.org
openSUSE-SU-2016:1674-1: moderate: Security update for libtasn1	af854a3a-2127-422b-91ae-364da2661108	lists.opensuse.org
Savannah Git Hosting - libtasn1.git/commit	af854a3a-2127-422b-91ae-364da2661108	git.savannah.gnu.org
Savannah Git Hosting - libtasn1.git/commit	MITRE	git.savannah.gnu.org
Savannah Git Hosting - libtasn1.git/commit	MITRE	git.savannah.gnu.org
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

Legacy QID Mappings

710446 Gentoo Linux GNU Libtasn1 Denial of Service (DoS) Vulnerability (GLSA 201703-05)