Medium severity · published May 5, 2016
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…
5.9
CVSS
29.4%
EPSS
No
On KEV
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
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)29.4% · higher than 98% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FE
Fedora · Fedoraproject
22; 23; 24 · source: NVD
LI
Libtasn1 · Gnu
through 4.7 · source: NVD
OP
Opensuse · Opensuse
13.2 · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 15.10; 16.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-4008
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-4008
git.savannah.gnu.org
http://git.savannah.gnu.org/gitweb/?p=libtasn1.git%3Ba=commit%3Bh=a6e0a0b58f5cdaf4e9beca5bce69c09808cbb625
git.savannah.gnu.org
http://git.savannah.gnu.org/gitweb/?p=libtasn1.git%3Ba=commit%3Bh=f435825c0f527a8e52e6ffbc3ad0bc60531d537e
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182299.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182907.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/183221.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-updates/2016-06/msg00047.html
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