CVE-2017-6891
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.…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.58%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 5.58% probability · 93th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- gnu/libtasn1 · debian/debian linux · apache/bookkeeper
- Source
- PSIRT-CNA@flexerasoftware.com
EPSS 5.6% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://git.savannah.gnu.org/gitweb/?p=libtasn1.git%3Ba=commit%3Bh=5520704d075802df25ce4ffccc010ba1641bd484
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00018.htmlBroken Link
- http://www.debian.org/security/2017/dsa-3861Third Party Advisory
- http://www.securityfocus.com/bid/98641Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038619Third Party Advisory, VDB Entry
- 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/Permissions Required
- https://secuniaresearch.flexerasoftware.com/secunia_research/2017-11/Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201710-11Third Party Advisory
- http://git.savannah.gnu.org/gitweb/?p=libtasn1.git%3Ba=commit%3Bh=5520704d075802df25ce4ffccc010ba1641bd484
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00018.htmlBroken Link
- http://www.debian.org/security/2017/dsa-3861Third Party Advisory
- http://www.securityfocus.com/bid/98641Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038619Third Party Advisory, VDB Entry
- 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/Permissions Required
- https://secuniaresearch.flexerasoftware.com/secunia_research/2017-11/Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201710-11Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.