certfr_avis - certa-2010-avi-355

CERTA-2010-AVI-355

Vulnerability from certfr_avis - Published: - Updated:

Une vulnérabilité dans l'implémentation CIFS de Linux permet de contourner la politique de sécurité.

Description

La fonctionnalité de résolution DNS de l'implémentation Linux de CIFS peut être redirigée par un utilisateur malintentionné.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Noyau Linux versions antérieures à 2.6.35.

Impacted products

	Vendor	Product	Description

References

Title

Publication Time

CVE-2010-2524 (GCVE-0-2010-2524)

Vulnerability from cvelistv5 – Published: 2010-09-08 19:00 – Updated: 2024-08-07 02:39

Summary

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.

Severity ?

No CVSS data available.

CWE

Assigner

redhat

References

URL

Tags

	http://www.redhat.com/support/errata/RHSA-2010-06…	vendor-advisoryx_refsource_REDHAT
	http://www.ubuntu.com/usn/USN-1000-1	vendor-advisoryx_refsource_UBUNTU
	http://marc.info/?l=oss-security&m=128078387328921&w=2	mailing-listx_refsource_MLIST
	http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
	http://www.kernel.org/pub/linux/kernel/v2.6/Chang…	x_refsource_CONFIRM
	http://secunia.com/advisories/43315	third-party-advisoryx_refsource_SECUNIA
	http://marc.info/?l=oss-security&m=128072090331700&w=2	mailing-listx_refsource_MLIST
	http://www.vmware.com/security/advisories/VMSA-20…	x_refsource_CONFIRM
	https://bugzilla.redhat.com/show_bug.cgi?id=612166	x_refsource_CONFIRM
	http://www.securityfocus.com/archive/1/516397/100…	mailing-listx_refsource_BUGTRAQ
	http://git.kernel.org/?p=linux/kernel/git/torvald…	x_refsource_CONFIRM
	http://www.mandriva.com/security/advisories?name=…	vendor-advisoryx_refsource_MANDRIVA
	http://marc.info/?l=oss-security&m=128080755321157&w=2	mailing-listx_refsource_MLIST

Show details on NVD website

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To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted