Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux-Nfs | Nfs-Utils | <= 1.2.3 |
Related Weaknesses (CWE)
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.
- 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.
- https://bugzilla.redhat.com/show_bug.cgi?id=716949
FAQ
What is CVE-2011-2500?
CVE-2011-2500 is a vulnerability with a CVSS score of 7.5 (HIGH). 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...
How severe is CVE-2011-2500?
CVE-2011-2500 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-2500?
Check the references section above for vendor advisories and patch information. Affected products include: Linux-Nfs Nfs-Utils.