Joined: 12 May 2004
|Posted: Thu Oct 04, 2007 10:26 pm Post subject: [ GLSA 200710-01 ] RPCSEC_GSS library: Buffer overflow
|Gentoo Linux Security Advisory
Title: RPCSEC_GSS library: Buffer overflow (GLSA 200710-01)
Date: October 04, 2007
A buffer overflow vulnerability has been discovered in librpcsecgss.
librpcsecgss is an implementation of RPCSEC_GSS for secure RPC communications.
Vulnerable: < 0.16
Unaffected: >= 0.16
Architectures: All supported architectures
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:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=net-libs/librpcsecgss-0.16"