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Fencer Intel
critical 9.8

CVE-2017-5334 in the critical feed json

Double free vulnerability in the gnutls_x509_ext_import_proxy function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote attacke…

published 2017-03-24 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-14439

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
32.8%
EPSS 32.8% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

Double free vulnerability in the gnutls_x509_ext_import_proxy function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote attackers to have unspecified impact via crafted policy language information in an X.509 certificate with a Proxy Certificate Information extension.

Patch / fix

  • gnutls28 Debian 14, Debian 13, Debian 12 3.5.8-1

debian advisories DEBIAN-CVE-2017-5334

  • gnutls28 Ubuntu 16.04 LTS 3.4.10-4ubuntu1.2

ubuntu advisories UBUNTU-CVE-2017-5334

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • gnutls RHEL 7 3.3.26-9.el7
  • gnutls-c++ RHEL 7 3.3.26-9.el7
  • gnutls-dane RHEL 7 3.3.26-9.el7
  • gnutls-utils RHEL 7 3.3.26-9.el7

red hat advisories RHSA-2017:2292

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-5334 updated cvss 5.3

gnutls: Double-free while decoding crafted X.509 certificates

  • Red Hat Enterprise Linux Client (v. 7) gnutls 3.3.26-9.el7, gnutls-dane 3.3.26-9.el7, gnutls-utils 3.3.26-9.el7 Red Hat Enterprise Linux Client Optional (v. 7) gnutls-c++ 3.3.26-9.el7 Red Hat Enterprise Linux ComputeNode (v. 7) gnutls 3.3.26-9.el7, gnutls-dane 3.3.26-9.el7, gnutls-utils 3.3.26-9.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) gnutls-c++ 3.3.26-9.el7 Red Hat Enterprise Linux Server (v. 7) gnutls 3.3.26-9.el7, gnutls-c++ 3.3.26-9.el7, gnutls-dane 3.3.26-9.el7, gnutls-utils 3.3.26-9.el7 Red Hat Enterprise Linux Workstation (v. 7) gnutls 3.3.26-9.el7, gnutls-c++ 3.3.26-9.el7, gnutls-dane 3.3.26-9.el7, gnutls-utils 3.3.26-9.el7
    fixed: vendor fix RHSA-2017:2292
  • Red Hat Enterprise Linux 5 gnutls Red Hat Enterprise Linux 6 gnutls, gnutls-guile, gnutls-utils
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-19-155-01 updated cvss 9.8

PHOENIX CONTACT PLCNext AXC F 2152

  • Phoenix Contact AXC F 2152 2404267 version 1.x, 1046568 (Starterkit) version 1.x
    affected: vendor fix, mitigation “Phoenix Contact recommends affected users update to firmware release 2019.0 LTS or later, update to PLCNext Engineer release 2019.0 LTS or later, and apply the following specific mitigations below:” phoenixcontact.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

32.75% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.