CVE-2009-5138: gnu gnutls

Modified

Published 06-03-2014Last modified 07-08-2024

Vulnerability summary

CVE-2009-5138 is a medium (CVSS 5.8) vulnerability in gnu gnutls. EPSS estimates a 1.80% chance of exploitation in the next 30 days, higher than 78.5% of scored vulnerabilities. 1 public exploit is recorded.

Priority

Routine

Not severe (CVSS 5.8, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

5.8/10

010

Medium · v2.0 (NVD)

EPSS score

1.80%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 1

RHSA-2014:0247

Timeline

06-03-2014
PublishedVulnerability first disclosed.
07-08-2024
Last modifiedVulnerability information updated.

Description

GnuTLS before 2.7.6, when the GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT flag is not enabled, treats version 1 X.509 certificates as intermediate CAs, which allows remote attackers to bypass intended restrictions by leveraging a X.509 V1 certificate from a trusted CA to issue new certificates, a different vulnerability than CVE-2014-1959.

CVSS metrics

1 score · 1 source · 1 version

v2.05.8

EPSS trend

Probability

1.80%

Chance of exploitation in the next 30 days

Percentile

79%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.80% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found

referenceUnverified
Exploit Reference (gitorious.org)
Maturity: unknown

Weaknesses

CWE · root cause

CWE-264Permissions, Privileges, and Access ControlsWeaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.

Affected systems

Version check

Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Gnu1 product

gnutls≤ 2.7.5 | 2.7.0 | 2.7.1 | 2.7.2 | 2.7.3 | 2.7.4

1 vendor · 1 product

References

14 links

secunia.com/advisories/57321Third Party AdvisoryX Refsource SECUNIA
secunia.com/advisories/57260Third Party AdvisoryX Refsource SECUNIA
lists.opensuse.org/opensuse-security-announce/2014-03/msg00020.htmlVendor AdvisoryX Refsource SUSE
secunia.com/advisories/57274Third Party AdvisoryX Refsource SECUNIA
lists.opensuse.org/opensuse-security-announce/2014-03/msg00000.htmlVendor AdvisoryX Refsource SUSE
article.gmane.org/gmane.comp.security.oss.general/12223Mailing ListX Refsource MLIST
rhn.redhat.com/errata/RHSA-2014-0247.htmlVendor AdvisoryX Refsource REDHAT
lists.opensuse.org/opensuse-security-announce/2014-03/msg00001.htmlVendor AdvisoryX Refsource SUSE
lists.opensuse.org/opensuse-security-announce/2014-03/msg00003.htmlVendor AdvisoryX Refsource SUSE
thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3351/focus=3361Mailing ListX Refsource MLIST

Show all 14 references

gitorious.org/gnutls/gnutls/commit/c8dcbedd1fdc312f5b1a70fcfbc1afe235d800cdX Refsource CONFIRMExploitPatch
secunia.com/advisories/57254Third Party AdvisoryX Refsource SECUNIA
bugzilla.redhat.com/show_bug.cgi?id=1069301X Refsource CONFIRM
thread.gmane.org/gmane.comp.security.oss.general/12127Mailing ListX Refsource MLIST