RPCSEC_GSS library: Buffer overflow
Gentoo Linux Security Advisory
||GLSA 200710-01 / librcpsecgss
||October 04, 2007
||October 04, 2007: 01
All supported architectures
A buffer overflow vulnerability has been discovered in librpcsecgss.
librpcsecgss is an implementation of RPCSEC_GSS for secure RPC
A stack based buffer overflow has been discovered in the
svcauth_gss_validate() function in file lib/rpc/svc_auth_gss.c when
processing an overly long string in a RPC message.
A remote attacker could send a specially crafted RPC request to an
application relying on this library, e.g NFSv4 or Kerberos
(GLSA-200709-01), resulting in the execution of arbitrary code with the
privileges of the user running the application.
There is no known workaround at this time.
All librpcsecgss users should upgrade to the latest version:
Code Listing 3.1: Resolution
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-libs/librpcsecgss-0.16"