CVE-2010-2524

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Summary

CVECVE-2010-2524
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2010-09-08 20:00:02 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: NVD-CWE-noinfo | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary4.6AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:L/AC:L/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 10.04 All All All
Operating System Canonical Ubuntu Linux 10.10 All All All
Operating System Canonical Ubuntu Linux 6.06 All All All
Operating System Canonical Ubuntu Linux 8.04 All All All
Operating System Canonical Ubuntu Linux 9.04 All All All
Operating System Canonical Ubuntu Linux 9.10 All All All
Operating System Linux Linux Kernel All All All All
Operating System Suse Suse Linux Enterprise Desktop 11 sp1 All All
Operating System Suse Suse Linux Enterprise Server 11 sp1 All All
Operating System Vmware Esx 4.0 All All All
Operating System Vmware Esx 4.1 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
Bug 612166 – CVE-2010-2524 kernel: dns_resolver upcall security issue af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Patch, Third Party Advisory
Support / Security / Advisories / / MDVSA-2010:172 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com Broken Link
'[oss-security] CVE-2010-2524 kernel: dns_resolver upcall security issue' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info Mailing List, Patch, Third Party Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
VMSA-2011-0003 af854a3a-2127-422b-91ae-364da2661108 www.vmware.com Patch, Third Party Advisory
'Re: [oss-security] CVE-2010-2524 kernel: dns_resolver upcall security' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info Mailing List, Patch, Third Party Advisory
Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com Broken Link
USN-1000-1: Linux kernel vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
VMware ESX Server Multiple Kernel Vulnerabilities - Advisories - Community af854a3a-2127-422b-91ae-364da2661108 secunia.com Broken Link
[security-announce] SUSE Security Announcement: Linux kernel (SUSE-SA:20 af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
'Re: [oss-security] CVE-2010-2524 kernel: dns_resolver upcall security' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info Mailing List, Third Party Advisory
404: File not found af854a3a-2127-422b-91ae-364da2661108 www.kernel.org Broken Link
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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