Access Restriction Bypass Affecting nfs-utils package, versions <1:1.2.3-15.el6


Severity

Recommended
low

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
2.57% (85th percentile)

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  • Snyk IDSNYK-RHEL6-NFSUTILS-1434129
  • published26 Jul 2021
  • disclosed22 Jun 2011

Introduced: 22 Jun 2011

CVE-2011-2500  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade RHEL:6 nfs-utils to version 1:1.2.3-15.el6 or higher.
This issue was patched in RHSA-2011:1534.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nfs-utils package and not the nfs-utils package as distributed by RHEL. See How to fix? for RHEL:6 relevant fixed versions and status.

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 Base Scores

version 3.1