High severity · published Sep 8, 2010
CVE-2010-2524
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…
7.8
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 2.6.35 · source: NVD
ES
Esx · Vmware
4.0; 4.1 · source: NVD
SL
Suse Linux Enterprise Desktop · Suse
11 · source: NVD
SL
Suse Linux Enterprise Server · Suse
11 · source: NVD
UL
Ubuntu Linux · Canonical
6.06; 8.04; 9.04; 9.10; 10.04; 10.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2010-2524
CVE.org
https://www.cve.org/CVERecord?id=CVE-2010-2524
git.kernel.org
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4c0c03ca54f72fdd5912516ad0a23ec5cf01bda7
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html
Mailing List
http://marc.info/?l=oss-security&m=128072090331700&w=2
Mailing List
http://marc.info/?l=oss-security&m=128078387328921&w=2
Mailing List
http://marc.info/?l=oss-security&m=128080755321157&w=2
Broken Link
http://secunia.com/advisories/43315
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