CVE-2010-2524
High
Description
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedSep 8, 2010
First seenSep 8, 2010
How to fix
Update
- linux linux_kernel2.6.35 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 2.6.35 | 2.6.35 |
| vmware esx | 4.0, 4.1 | — |
| canonical ubuntu_linux | 6.06, 8.04, 9.04, 9.10, 10.04, 10.10 | — |
| suse suse_linux_enterprise_desktop | 11 | — |
| suse suse_linux_enterprise_server | 11 | — |
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