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CVE-2006-4790

UnknownEPSS 2.43%

Last modified

CVE-2006-4790 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.43% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
2.43%

82.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
GnuGnutls1.0.17
GnuGnutls1.0.18
GnuGnutls1.0.19
GnuGnutls1.0.20
GnuGnutls1.0.21
GnuGnutls1.0.22
GnuGnutls1.0.23
GnuGnutls1.0.24
GnuGnutls1.0.25
GnuGnutls1.1.14
GnuGnutls1.1.15
GnuGnutls1.1.16
GnuGnutls1.1.17
GnuGnutls1.1.18
GnuGnutls1.1.19
GnuGnutls1.1.20
GnuGnutls1.1.21
GnuGnutls1.1.22
GnuGnutls1.1.23
GnuGnutls1.2.0
GnuGnutls1.2.1
GnuGnutls1.2.2
GnuGnutls1.2.3
GnuGnutls1.2.4
GnuGnutls1.2.5
GnuGnutls1.2.6
GnuGnutls1.2.7
GnuGnutls1.2.8
GnuGnutls1.2.8.1a1
GnuGnutls1.2.9
GnuGnutls1.2.10
GnuGnutls1.2.11
GnuGnutls1.3.0
GnuGnutls1.3.1
GnuGnutls1.3.2
GnuGnutls1.3.3
GnuGnutls1.3.4
GnuGnutls1.3.5
GnuGnutls1.4.0
GnuGnutls1.4.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2006-4790?
Severity scoring for CVE-2006-4790 is pending analysis. The EPSS model estimates a 2.43% probability of exploitation in the next 30 days.
How do I fix CVE-2006-4790?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST