CVE-2011-2500

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-02-15 · updated 2026-06-16
Weakness: CWE-264

Description

The host_reliable_addrinfo function in support/export/hostname.c in nfs-utils before 1.2.4 does not properly use DNS to verify access to NFS exports, which allows remote attackers to mount filesystems by establishing crafted DNS A and PTR records.

Affected products

Linux-Nfs Nfs-Utils: through 1.2.3; 1.2.0, 1.2.1, 1.2.2

References

http://marc.info/?l=linux-nfs&m=130875695821953&w=2
http://rhn.redhat.com/errata/RHSA-2011-1534.html
http://sourceforge.net/projects/nfs/files/nfs-utils/1.2.4/
http://sourceforge.net/projects/nfs/files/nfs-utils/1.2.4/Changelog-nfs-utils-1.2.4/download
https://bugzilla.redhat.com/show_bug.cgi?id=716949
http://marc.info/?l=linux-nfs&m=130875695821953&w=2
http://rhn.redhat.com/errata/RHSA-2011-1534.html
http://sourceforge.net/projects/nfs/files/nfs-utils/1.2.4/
http://sourceforge.net/projects/nfs/files/nfs-utils/1.2.4/Changelog-nfs-utils-1.2.4/download
https://bugzilla.redhat.com/show_bug.cgi?id=716949

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