Intrusion Prevention

GnuTLS.Status.Request.Extension.Null.Pointer.Dereference

Description

This indicates an attack attempt against a Denial of Service Vulnerability in GnuTLS.
The vulnerability is caused by an error when vulnerable application handles a handshake message with the large OCSP Status Request extension. A remote attacker may be able to exploit this to cause a denial of service condition on affected systems.

Affected Products

GnuTLS prior to 3.5.13

Impact

Denial of Service: Remote attackers can crash vulnerable systems.

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
https://www.gnutls.org/security.html#GNUTLS-SA-2017-4

CVE References

CVE-2017-7507