1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200903-06 / nfs-utils |
| Release Date | March 07, 2009 |
| Latest Revision | March 07, 2009: 01 |
| Impact | normal |
| Exploitable | remote |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| net-fs/nfs-utils | < 1.1.3 | >= 1.1.3 | All supported architectures |
Related bugreports: #242696
An error in nfs-utils allows for bypass of the netgroups restriction.
nfs-utils contains the client and daemon implementations for the NFS protocol.
Michele Marcionelli reported that nfs-utils invokes the hosts_ctl() function with the wrong order of arguments, which causes TCP Wrappers to ignore netgroups.
A remote attacker could bypass intended access restrictions, i.e. NFS netgroups, and gain access to restricted services.
There is no known workaround at this time.
All nfs-utils users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose ">=net-fs/nfs-utils-1.1.3" |