Vulnerability in GNU Gnutls
CVE-2008-4989
The _gnutls_x509_verify_certificate function in lib/x509/verify.c in libgnutls in GnuTLS before 2.6.1 trusts certificate chains in which the last certificate is an arbitrary trusted, self-signed certificate, which allows man-in-the-middle attackers to insert a spoofed certificate for any Distinguished Name (DN).
Vulnerability class: Improper Certificate Validation
EPSS: 0.019 (77.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Gnu Gnutls
- Canonical Ubuntu_linux — versions 6.06, 7.10, 8.04
- Debian Debian_linux — versions 4.0
- Fedoraproject Fedora — versions 8, 9
- Opensuse
- Suse Linux_enterprise — versions 10.0, 11.0
- Suse Linux_enterprise_server — versions 10, 11
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (vendor-advisory, x_refsource_MANDRIVA, Broken Link)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- cve@mitre.org (x_refsource_SECUNIA, Broken Link, third-party-advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- cve@mitre.org (x_refsource_REDHAT, vendor-advisory, Broken Link)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Broken Link)
- cve@mitre.org (mailing-list, x_refsource_BUGTRAQ, VDB Entry, Third Party Advisory, Broken Link)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Patch, Broken Link)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Broken Link)
- cve@mitre.org (x_refsource_CONFIRM, Broken Link)
Frequently asked questions
- What is CVE-2008-4989?
- CVE-2008-4989 is a medium-severity vulnerability in GNU Gnutls, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2008-11-13.
- How severe is CVE-2008-4989?
- Medium severity. CVSS v3 base score is 5.9 out of 10.