CVE-2009-5138
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…
Does this matter?
Lower severity and a low EPSS score (1.81%). Track it; it rarely justifies an emergency change on its own.
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 2.0
- 5.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:N
- EPSS
- 1.81% probability · 77th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- gnu/gnutls
- Source
- secalert@redhat.com
References
- http://article.gmane.org/gmane.comp.security.oss.general/12223
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00003.html
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00020.html
- http://rhn.redhat.com/errata/RHSA-2014-0247.html
- http://secunia.com/advisories/57254
- http://secunia.com/advisories/57260
- http://secunia.com/advisories/57274
- http://secunia.com/advisories/57321
- http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3351/focus=3361
- http://thread.gmane.org/gmane.comp.security.oss.general/12127
- https://bugzilla.redhat.com/show_bug.cgi?id=1069301
- https://gitorious.org/gnutls/gnutls/commit/c8dcbedd1fdc312f5b1a70fcfbc1afe235d800cdExploit, Patch
- http://article.gmane.org/gmane.comp.security.oss.general/12223
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00003.html
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00020.html
- http://rhn.redhat.com/errata/RHSA-2014-0247.html
- http://secunia.com/advisories/57254
- http://secunia.com/advisories/57260
- http://secunia.com/advisories/57274
- http://secunia.com/advisories/57321
- http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3351/focus=3361
- http://thread.gmane.org/gmane.comp.security.oss.general/12127
- https://bugzilla.redhat.com/show_bug.cgi?id=1069301
- https://gitorious.org/gnutls/gnutls/commit/c8dcbedd1fdc312f5b1a70fcfbc1afe235d800cdExploit, Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.