CVE Tools
Sign in

CVE-2017-6891

Published: May 22, 2017Updated: May 13, 2026 Sources: CVE List NVDCWE-787
NVD MITRE
8.8CVSSHIGH
EPSS Score
5.6%
Top 8.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-787

Affected Products

libtasn1gnuOSS Libraries
debian linuxdebian
On-premOS
Operating Systems / linux-distro
bookkeeperapache
Mixed
Web & CMS Plugins / cms-core
GnuTLS libtasn1Flexera Software LLC
Mixed
Enterprise Software / itsm-monitoring
gnuoss-projectUSOSS Librariesaka g. nu
debianoss-projectGBOperating Systemsaka debian gnu/linux
apacheoss-projectUSWeb & CMS Pluginsaka apache http server, apache httpd
flexera software llccommercialEnterprise Softwareaka flexnet publisher, linux kernel, libraw

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

http://git.savannah.gnu.org/gitweb/?p=libtasn1.git%3Ba=commit%3Bh=5520704d075802df25ce4ffccc010ba1641bd484
git.savannah.gnu.org
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00018.html
lists.opensuse.org
http://www.debian.org/security/2017/dsa-3861
debian.org
and 7 more references View all →

Timeline

Published
May 22, 2017
Last Updated
May 13, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2017-6891 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows