CVE-2017-6891
high
CVSS v3
8.8
CVSS v4 NEW
—
VIR risk
8.8
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.
Predictions
Exploit likelihood
92%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 4.11-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 4.10-1.1 |
| debian | bullseye | fixed | 4.10-1.1 |
| debian | forky | fixed | 4.10-1.1 |
| debian | sid | fixed | 4.10-1.1 |
| debian | trixie | fixed | 4.10-1.1 |
| debian | 8.0 | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| gnu | libtasn1 | 4.10 | |
| apache | bookkeeper | 4.12.1 | |
References
- https://security.archlinux.org/ASA-201706-10
- https://security.archlinux.org/ASA-201706-3
- http://git.savannah.gnu.org/gitweb/?p=libtasn1.git%3Ba=commit%3Bh=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://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://secuniaresearch.flexerasoftware.com/advisories/76125/
- https://secuniaresearch.flexerasoftware.com/secunia_research/2017-11/
- https://security.gentoo.org/glsa/201710-11
- https://www.suse.com/security/cve/CVE-2017-6891.html
- https://security-tracker.debian.org/tracker/CVE-2017-6891
CWEs
CWE-787
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.