Vulnerability in GNU Gnutls
CVE-2006-4790
verify.c in GnuTLS before 1.4.4, when using an RSA key with exponent 3, does not properly handle excess data in the digestAlgorithm.parameters field when generating a hash, which allows remote attackers to forge a PKCS #1 v1.5 signature that is signed by that RSA key and prevents GnuTLS from correctly verifying X.509 and other certificates that use PKCS, a variant of CVE-2006-4339.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.025 (84.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- GNU Gnutls — versions 1.0.17, 1.0.18, 1.0.19
References
- secunia.com/advisories/25762 (third-party-advisory)
- secunia.com/advisories/22992 (third-party-advisory)
- secunia.com/advisories/21937 (third-party-advisory)
- secunia.com/advisories/22049 (third-party-advisory)
- securitytracker.com/id (vdb-entry)
- www.vupen.com/english/advisories/2006/3899 (vdb-entry)
- www.securityfocus.com/bid/20027 (vdb-entry)
- www.novell.com/linux/security/advisories/2006_23_sr.html (vendor-advisory)
- www.mandriva.com/security/advisories (vendor-advisory)
- www.redhat.com/support/errata/RHSA-2006-0680.html (vendor-advisory, Patch, Vendor Advisory)