Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Libtasn1 | 4.10 |
| Debian | Debian Linux | 8.0 |
| Apache | Bookkeeper | 4.12.1 |
Related Weaknesses (CWE)
References
- http://git.savannah.gnu.org/gitweb/?p=libtasn1.git%3Ba=commit%3Bh=5520704d075802
- 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 AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038619Third Party AdvisoryVDB Entry
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e3
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8
- https://secuniaresearch.flexerasoftware.com/advisories/76125/Permissions Required
- https://secuniaresearch.flexerasoftware.com/secunia_research/2017-11/PatchThird Party Advisory
- https://security.gentoo.org/glsa/201710-11Third Party Advisory
- http://git.savannah.gnu.org/gitweb/?p=libtasn1.git%3Ba=commit%3Bh=5520704d075802
- 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 AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038619Third Party AdvisoryVDB Entry
FAQ
What is CVE-2017-6891?
CVE-2017-6891 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 spec...
How severe is CVE-2017-6891?
CVE-2017-6891 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-6891?
Check the references section above for vendor advisories and patch information. Affected products include: Gnu Libtasn1, Debian Debian Linux, Apache Bookkeeper.