CVE-2006-4790 (GCVE-0-2006-4790)

Vulnerability from cvelistv5 – Published: 2006-09-14 19:00 – Updated: 2024-08-07 19:23
VLAI
Summary
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.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1033 records in the last 180 days details
References
URL Tags
http://secunia.com/advisories/25762 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/22992 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/21937 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/22049 third-party-advisoryx_refsource_SECUNIA
http://securitytracker.com/id?1016844 vdb-entryx_refsource_SECTRACK
http://www.vupen.com/english/advisories/2006/3899 vdb-entryx_refsource_VUPEN
http://www.securityfocus.com/bid/20027 vdb-entryx_refsource_BID
http://www.novell.com/linux/security/advisories/2… vendor-advisoryx_refsource_SUSE
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://www.redhat.com/support/errata/RHSA-2006-06… vendor-advisoryx_refsource_REDHAT
http://www.gnu.org/software/gnutls/security.html x_refsource_CONFIRM
https://oval.cisecurity.org/repository/search/def… vdb-entrysignaturex_refsource_OVAL
http://sunsolve.sun.com/search/document.do?assetk… vendor-advisoryx_refsource_SUNALERT
http://www.vupen.com/english/advisories/2006/3635 vdb-entryx_refsource_VUPEN
http://secunia.com/advisories/21942 third-party-advisoryx_refsource_SECUNIA
http://lists.gnupg.org/pipermail/gnutls-dev/2006-… mailing-listx_refsource_MLIST
http://secunia.com/advisories/22080 third-party-advisoryx_refsource_SECUNIA
http://security.gentoo.org/glsa/glsa-200609-15.xml vendor-advisoryx_refsource_GENTOO
http://www.novell.com/linux/security/advisories/2… vendor-advisoryx_refsource_SUSE
http://www.debian.org/security/2006/dsa-1182 vendor-advisoryx_refsource_DEBIAN
http://support.avaya.com/elmodocs2/security/ASA-2… x_refsource_CONFIRM
https://exchange.xforce.ibmcloud.com/vulnerabilit… vdb-entryx_refsource_XF
http://sunsolve.sun.com/search/document.do?assetk… vendor-advisoryx_refsource_SUNALERT
http://secunia.com/advisories/21973 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/22226 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/22084 third-party-advisoryx_refsource_SECUNIA
http://lists.gnupg.org/pipermail/gnutls-dev/2006-… mailing-listx_refsource_MLIST
http://www.ubuntu.com/usn/usn-348-1 vendor-advisoryx_refsource_UBUNTU
http://www.vupen.com/english/advisories/2007/2289 vdb-entryx_refsource_VUPEN
http://secunia.com/advisories/22097 third-party-advisoryx_refsource_SECUNIA
Date Public
2006-09-08 00:00
Show details on NVD website
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "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."
          },
          {
            "lang": "es",
            "value": "verify.c en GnuTLS anterior a 1.4.4, cuando usamos una llave RSA con exponente 3, no maneja   correctamente el exceso de datos en el campo  digestAlgorithm.parameters al generar un hash, el cual permite a un atacante remoto falsificar una firma PKCS #1 v1.5 que es firmada por esa llave RSA y evita que GnuTLS verifique correctamente X.509 y otros certificados que utilicen PKCS, es una variante de CVE-2006-4339."
          }
        ],
        "id": "CVE-2006-4790",
        "lastModified": "2026-04-16T00:27:16.627",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 5.0,
                "confidentialityImpact": "NONE",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
                "version": "2.0"
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              "exploitabilityScore": 10.0,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2006-09-14T19:07:00.000",
        "references": [
          {
            "source": "secalert@redhat.com",
            "url": "http://lists.gnupg.org/pipermail/gnutls-dev/2006-September/001205.html"
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        "sourceIdentifier": "secalert@redhat.com",
        "vendorComments": [
          {
            "comment": "Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.",
            "lastModified": "2007-03-14T00:00:00",
            "organization": "Red Hat"
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                "lang": "en",
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    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2025-11-21T13:24:00+00:00",
      "cve": "CVE-2006-4790",
      "id": "CVE-2006-4790",
      "initial_release_date": "2006-09-08T00:00:00+00:00",
      "product_status:fixed": "84",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "security flaw",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2006/cve-2006-4790.json",
      "version": "3"
    }
  }
}



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