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Fencer Vulns
critical 9.8

CVE-2017-5337 json

Multiple heap-based buffer overflows in the read_attribute function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allow remote attackers t…

published 2017-03-24 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-14442

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.2%
EPSS 6.2% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

Multiple heap-based buffer overflows in the read_attribute function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allow remote attackers to have unspecified impact via a crafted OpenPGP certificate.

Patch / fix

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

debian advisories DEBIAN-CVE-2017-5337

  • gnutls26 Ubuntu 14.04 LTS 2.12.23-12ubuntu2.6
  • gnutls28 Ubuntu 16.04 LTS 3.4.10-4ubuntu1.2

ubuntu advisories UBUNTU-CVE-2017-5337

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
  • gnutls RHEL 6 2.12.23-21.el6
  • gnutls-guile RHEL 6 2.12.23-21.el6
  • gnutls-utils RHEL 6 2.12.23-21.el6

red hat advisories RHSA-2017:2292RHSA-2017:0574

  • gnutls SLES for SAP 12 SP2, SLES for SAP 12 SP1, SLES for Raspberry Pi 12 SP2 +6 more 3.2.15-16.1
  • gnutls SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 +1 more 2.4.1-24.39.67.1

suse advisories SUSE-SU-2017:0348-1SUSE-SU-2017:0304-1

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-2017-5337 updated cvss 5.3

gnutls: Heap read overflow in read-packet.c

  • Red Hat Enterprise Linux 5 gnutls
    affected: no fix planned “Will not fix”
  • 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
    fixed: vendor fix RHSA-2017:2292
  • Red Hat Enterprise Linux Desktop (v. 6) gnutls 2.12.23-21.el6, gnutls-utils 2.12.23-21.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) gnutls-guile 2.12.23-21.el6 Red Hat Enterprise Linux HPC Node (v. 6) gnutls 2.12.23-21.el6, gnutls-utils 2.12.23-21.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) gnutls-guile 2.12.23-21.el6 Red Hat Enterprise Linux Server (v. 6) gnutls 2.12.23-21.el6, gnutls-utils 2.12.23-21.el6
    fixed: vendor fix RHSA-2017:0574
  • 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
    fixed: vendor fix RHSA-2017:2292
  • Red Hat Enterprise Linux Server Optional (v. 6) gnutls-guile 2.12.23-21.el6 Red Hat Enterprise Linux Workstation (v. 6) gnutls 2.12.23-21.el6, gnutls-utils 2.12.23-21.el6
    fixed: vendor fix RHSA-2017:0574
  • 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 Workstation Optional (v. 6) gnutls-guile 2.12.23-21.el6
    fixed: vendor fix RHSA-2017:0574

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

6.18% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

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
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns 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.