CVE-2010-2524

HIGH

Linux kernel <2.6.35 - Info Disclosure

Title source: llm
STIX 2.1

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.

References (13)

Core 13
Core References
Broken Link vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2010-0610.html
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-1000-1
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://marc.info/?l=oss-security&m=128078387328921&w=2
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html
Broken Link third-party-advisory x_refsource_secunia
http://secunia.com/advisories/43315
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://marc.info/?l=oss-security&m=128072090331700&w=2
Patch, Third Party Advisory x_refsource_confirm
http://www.vmware.com/security/advisories/VMSA-2011-0003.html
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=612166
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/516397/100/0/threaded
Broken Link vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2010:172
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://marc.info/?l=oss-security&m=128080755321157&w=2

Scores

CVSS v3 7.8
EPSS 0.0009
EPSS Percentile 24.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (11)
canonical/ubuntu_linux 6.06
canonical/ubuntu_linux 8.04
canonical/ubuntu_linux 9.04
canonical/ubuntu_linux 9.10
canonical/ubuntu_linux 10.04
canonical/ubuntu_linux 10.10
linux/linux_kernel < 2.6.35
suse/suse_linux_enterprise_desktop 11 sp1
suse/suse_linux_enterprise_server 11 sp1
vmware/esx 4.0
... and 1 more
Published Sep 08, 2010
Tracked Since Feb 18, 2026