CVE-2017-5336

high-risk
Published 2017-03-24

Stack-based buffer overflow in the cdk_pk_get_keyid function in lib/opencdk/pubkey.c in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote attackers to have unspecified impact via a crafted OpenPGP certificate.

Do I need to act?

~
3.9% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (11)

Affected Vendors

Opensuse Gnu

References (22)

Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00005.html
http://rhn.redhat.com/errata/RHSA-2017-0574.html
Mailing List http://www.openwall.com/lists/oss-security/2017/01/10/7
Mailing List http://www.openwall.com/lists/oss-security/2017/01/11/4
Third Party Advisory http://www.securityfocus.com/bid/95377
Third Party Advisory http://www.securitytracker.com/id/1037576
https://access.redhat.com/errata/RHSA-2017:2292
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=340
Issue Tracking https://gitlab.com/gnutls/gnutls/commit/5140422e0d7319a8e2fe07f02cbcafc4d6538732
Vendor Advisory https://gnutls.org/security.html#GNUTLS-SA-2017-2
Patch https://security.gentoo.org/glsa/201702-04
Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00005.html
http://rhn.redhat.com/errata/RHSA-2017-0574.html
Mailing List http://www.openwall.com/lists/oss-security/2017/01/10/7
Mailing List http://www.openwall.com/lists/oss-security/2017/01/11/4
Third Party Advisory http://www.securityfocus.com/bid/95377
Third Party Advisory http://www.securitytracker.com/id/1037576
https://access.redhat.com/errata/RHSA-2017:2292
Issue Tracking https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=340
Issue Tracking https://gitlab.com/gnutls/gnutls/commit/5140422e0d7319a8e2fe07f02cbcafc4d6538732
and 2 more references
55
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 7/34 · Low
Exposure 16/34 · Moderate