vulnwire
7.5high

CVE-2016-7444

The gnutls_ocsp_resp_check_crt function in lib/x509/ocsp.c in GnuTLS before 3.4.15 and 3.5.x before 3.5.4 does not verify the serial length…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
2.4%
percentile 84%
Public exploits
0
none known

The gnutls_ocsp_resp_check_crt function in lib/x509/ocsp.c in GnuTLS before 3.4.15 and 3.5.x before 3.5.4 does not verify the serial length of an OCSP response, which might allow remote attackers to bypass an intended certificate validation mechanism via vectors involving trailing bytes left by gnutls_malloc.

Exploit prediction (EPSS)

2.44% probability of exploitation in the next 30 days, higher than 84% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

References

  • securityfocus.com /bid/92893 · vdb-entry, x_refsource_BID, x_transferred
  • gitlab.com /gnutls/gnutls/commit/964632f37dfdfb914ebc5e49db4fa29af35b1de9 · x_refsource_CONFIRM, x_transferred
  • access.redhat.com /errata/RHSA-2017:2292 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2017-02/msg00005.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • lists.gnupg.org /pipermail/gnutls-devel/2016-September/008146.html · mailing-list, x_refsource_MLIST, x_transferred
  • gnutls.org /security.html · x_refsource_CONFIRM, x_transferred

Sources

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