certfr_avis - certa-2010-avi-355

CERTA-2010-AVI-355

Vulnerability from certfr_avis

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

Modified

2024-08-07 02:39

Severity ?

CWE

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.

References

URL

Tags

	http://www.redhat.com/support/errata/RHSA-2010-0610.html	vendor-advisory, x_refsource_REDHAT
	http://www.ubuntu.com/usn/USN-1000-1	vendor-advisory, x_refsource_UBUNTU
	http://marc.info/?l=oss-security&m=128078387328921&w=2	mailing-list, x_refsource_MLIST
	http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html	vendor-advisory, x_refsource_SUSE
	http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35	x_refsource_CONFIRM
	http://secunia.com/advisories/43315	third-party-advisory, x_refsource_SECUNIA
	http://marc.info/?l=oss-security&m=128072090331700&w=2	mailing-list, x_refsource_MLIST
	http://www.vmware.com/security/advisories/VMSA-2011-0003.html	x_refsource_CONFIRM
	https://bugzilla.redhat.com/show_bug.cgi?id=612166	x_refsource_CONFIRM
	http://www.securityfocus.com/archive/1/516397/100/0/threaded	mailing-list, x_refsource_BUGTRAQ
	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4c0c03ca54f72fdd5912516ad0a23ec5cf01bda7	x_refsource_CONFIRM
	http://www.mandriva.com/security/advisories?name=MDVSA-2010:172	vendor-advisory, x_refsource_MANDRIVA
	http://marc.info/?l=oss-security&m=128080755321157&w=2	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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