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CVE-2017-6891

Date: May 22, 2017

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.

Language: C

Severity Score

Related Resources (16)

http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00018.html
https://nvd.nist.gov/vuln/detail/CVE-2017-6891
http://git.savannah.gnu.org/gitweb/?p=libtasn1.git%3Ba=commit%3Bh=5520704d075802df25ce4ffccc010ba1641bd484
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-6891
http://www.securitytracker.com/id/1038619
http://www.securityfocus.com/bid/98641
http://www.debian.org/security/2017/dsa-3861
https://secuniaresearch.flexerasoftware.com/advisories/76125/
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
https://security.alpinelinux.org/vuln/CVE-2017-6891
https://security.gentoo.org/glsa/201710-11
https://access.redhat.com/security/cve/CVE-2017-6891
https://security-tracker.debian.org/tracker/CVE-2017-6891
https://secuniaresearch.flexerasoftware.com/secunia_research/2017-11/
https://www.mend.io/vulnerability-database/CVE-2017-6891

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

Out-of-bounds Write

CWE-787

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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