Vulnerability CVE-2017-6891
Published: 2017-05-22

Description:
Two errors in the "asn1_find_node()" function (lib/parser_aux.c) within GnuTLS libtasn1 version 4.10 can be exploited to cause a stacked-based buffer overflow by tricking a user into processing a specially crafted assignments file via the e.g. asn1Coding utility.

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
GNU -> Gnutls libtasn1 

 References:
http://git.savannah.gnu.org/gitweb/?p=libtasn1.git;a=commit;h=5520704d075802df25ce4ffccc010ba1641bd484
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00018.html
http://www.debian.org/security/2017/dsa-3861
http://www.securityfocus.com/bid/98641
http://www.securitytracker.com/id/1038619
https://secuniaresearch.flexerasoftware.com/advisories/76125/
https://secuniaresearch.flexerasoftware.com/secunia_research/2017-11/
https://security.gentoo.org/glsa/201710-11
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