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Fencer Vulns
medium 5.0

CVE-2006-7239 json

The _gnutls_x509_oid2mac_algorithm function in lib/gnutls_algorithms.c in GnuTLS before 1.4.2 allows remote attackers to cause a denial of…

published 2010-05-24 16 y ago modified 2026-06-16 4 mo ago also EUVD-2006-7216

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 75%
public exploits
0
none known

Summary

The _gnutls_x509_oid2mac_algorithm function in lib/gnutls_algorithms.c in GnuTLS before 1.4.2 allows remote attackers to cause a denial of service (crash) via a crafted X.509 certificate that uses a hash algorithm that is not supported by GnuTLS, which triggers a NULL pointer dereference.

Patch / fix

  • gnutls RHEL 5 1.4.1-7.el5_8.1
  • gnutls-utils RHEL 5 1.4.1-7.el5_8.1

red hat advisories RHBA-2012:0319

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-2006-7239 updated cvss 3.5

gnutls: unknown hash algorithm NULL pointer derefence [GNUTLS-SA-2006-2]

  • Red Hat Enterprise Linux (v. 5 server) gnutls 1.4.1-7.el5_8.1, gnutls-utils 1.4.1-7.el5_8.1 Red Hat Enterprise Linux Desktop (v. 5 client) gnutls 1.4.1-7.el5_8.1, gnutls-utils 1.4.1-7.el5_8.1 Red Hat RHEL Desktop Workstation (v. 5 client) gnutls 1.4.1-7.el5_8.1
    fixed: vendor fix RHBA-2012:0319
  • Red Hat Enterprise Linux 4 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

Exploit prediction

1.54% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

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.