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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…
- 5.0MediumCVSS base score
- 2.6%Exploitation in 30 daysEPSS · top 15% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By redhat
- 1 day later
· 1 day later
Published
- 18 years later
· 18 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 2.6% · top 15% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
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)
- EUVD EUVD-2006-4777 (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)
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[](https://cveledger.app/cve/CVE-2006-4790)Record last updated .