verify.c in GnuTLS before 1.4.4, when using an RSA key with exponent 3, does not properly handle excess data in the…

Description

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.

Scores

EPSS (exploitation in 30 days)

2.6% · top 15% of all CVEs (5 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.

Weakness

• n/a

Affected products

• n/a

  • affected n/a

References (30)

• 25762 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 22992 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 21937 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 22049 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 1016844 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• ADV-2006-3899 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 20027 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• SUSE-SR:2006:023 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• MDKSA-2006:166 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• RHSA-2006:0680 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• http://www.gnu.org/software/gnutls/security.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• oval:org.mitre.oval:def:9937 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• 102970 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
• ADV-2006-3635 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 21942 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• [gnutls-dev] 20060908 Variant of Bleichenbacher's crypto 06 rump session attack (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• 22080 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• GLSA-200609-15 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• SUSE-SA:2007:010 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• DSA-1182 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• http://support.avaya.com/elmodocs2/security/ASA-2006-250.htm (opens in a new tab)x_refsource_CONFIRMx_transferred
• gnutls-rsakey-security-bypass(28953) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• 102648 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
• 21973 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 22226 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 22084 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• [gnutls-dev] 20060912 Re: Variant of Bleichenbacher's crypto 06 rump session attack (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• USN-348-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• ADV-2007-2289 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 22097 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2006-4790](https://trackcve.app/badge/CVE-2006-4790.svg)](https://trackcve.app/cve/CVE-2006-4790)

Record last updated 7 Aug 2024, 19:23 UTC.