GnuTLS: Denial of Service — GLSA 201710-15

A null pointer dereference in GnuTLS might allow attackers to cause a Denial of Service condition.

Affected Packages

net-libs/gnutls on all architectures
Affected versions < 3.5.13
Unaffected versions >= 3.5.13

Background

GnuTLS is a secure communications library implementing the SSL, TLS and DTLS protocols and technologies around them.

Description

A null pointer dereference while decoding a status response TLS extension with valid contents was discovered in GnuTLS.

Impact

A remote attacker could possibly cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All GnuTLS users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-libs/gnutls-3.5.13"
 

Packages which depend on this library may need to be recompiled. Tools such as revdep-rebuild may assist in identifying some of these packages.

References

Release Date
October 15, 2017

Latest Revision
October 15, 2017: 1

Severity
normal

Exploitable
remote

Bugzilla entries