NetSight
high7.8

CVE-2010-2524

The DNS resolution functionality in the CIFS implementation in the Linux kernel before 2.6.35, when CONFIG_CIFS_DFS_UPCALL is enabled, relies on a user's keyri…

Impact

The DNS resolution functionality in the CIFS implementation in the Linux kernel before 2.6.35, when CONFIG_CIFS_DFS_UPCALL is enabled, relies on a user's keyring for the dns_resolver upcall in the cifs.upcall userspace helper, which allows local users to spoof the results of DNS queries and perform arbitrary CIFS mounts via vectors involving an add_key call, related to a "cache stuffing" issue and MS-DFS referrals.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
before 2.6.35
VmwareEsx
Versions 4.0, 4.1
CanonicalUbuntu Linux
Versions 6.06, 8.04, 9.04, 9.10, 10.04, 10.10
SuseSuse Linux Enterprise Desktop
Version 11
SuseSuse Linux Enterprise Server
Version 11

References