OSVDB ID: 8278 Title: GnuTLS X.509 Certificate Signature Verification DoS |
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Description |
GnuTLS contains a flaw that may allow a remote denial of service. The issue is due to the product not limiting the length of a certificate chain or the size of the RSA or DSA keys used to sign a X.509 certificate. An attacker can craft a certificate using very large keys causing the product to consume excessive CPU resources when trying to validate the certificate chain resulting in a denial of service condition, and will result in loss of availability for the platform. |
Classification |
Location:
Remote / Network Access
Attack Type: Denial of Service Impact: Loss of Availability Exploit: Exploit Public |
Solution |
Upgrade to version 1.0.17 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds. |
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Credit |
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hornik.sk -