CVE-2010-2524

HIGH
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4c0c03ca54f72fdd5912516ad0a23ec5cf01bda7

http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html

http://marc.info/?l=oss-security&m=128072090331700&w=2

http://marc.info/?l=oss-security&m=128078387328921&w=2

http://marc.info/?l=oss-security&m=128080755321157&w=2

http://secunia.com/advisories/43315

http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35

http://www.mandriva.com/security/advisories?name=MDVSA-2010:172

http://www.redhat.com/support/errata/RHSA-2010-0610.html

http://www.securityfocus.com/archive/1/516397/100/0/threaded

http://www.ubuntu.com/usn/USN-1000-1

http://www.vmware.com/security/advisories/VMSA-2011-0003.html

https://bugzilla.redhat.com/show_bug.cgi?id=612166

Details

Source: MITRE

Published: 2010-09-08

Updated: 2020-08-14

Risk Information

CVSS v2

Base Score: 4.6

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

Impact Score: 6.4

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Tenable Plugins

View all (17 total)

IDNameProductFamilySeverity
89674VMware ESX / ESXi Third-Party Libraries Multiple Vulnerabilities (VMSA-2011-0003) (remote check)NessusMisc.
critical
83037F5 Networks BIG-IP : Linux kernel vulnerability (SOL16477)NessusF5 Networks Local Security Checks
medium
75548openSUSE Security Update : Kernel (openSUSE-SU-2010:0592-1)NessusSuSE Local Security Checks
high
68081Oracle Linux 5 : kernel (ELSA-2010-0610)NessusOracle Linux Local Security Checks
critical
65101Ubuntu 10.04 LTS : linux-lts-backport-maverick vulnerabilities (USN-1083-1)NessusUbuntu Local Security Checks
critical
60834Scientific Linux Security Update : kernel on SL5.x i386/x86_64NessusScientific Linux Local Security Checks
critical
55170Debian DSA-2264-1 : linux-2.6 - privilege escalation/denial of service/information leakNessusDebian Local Security Checks
high
51971VMSA-2011-0003 : Third-party component updates for VMware vCenter Server, vCenter Update Manager, ESXi and ESXNessusVMware ESX Local Security Checks
high
51610SuSE 11.1 Security Update : Linux kernel (SAT Patch Numbers 3068 / 3069 / 3070)NessusSuSE Local Security Checks
critical
50044Ubuntu 6.06 LTS / 8.04 LTS / 9.04 / 9.10 / 10.04 LTS / 10.10 : linux, linux-ec2, linux-source-2.6.15 vulnerabilities (USN-1000-1)NessusUbuntu Local Security Checks
critical
49671openSUSE Security Update : kernel (openSUSE-SU-2010:0664-1)NessusSuSE Local Security Checks
critical
49190Mandriva Linux Security Advisory : kernel (MDVSA-2010:172)NessusMandriva Local Security Checks
high
48312RHEL 5 : kernel (RHSA-2010:0610)NessusRed Hat Local Security Checks
critical
48301CentOS 5 : kernel (CESA-2010:0610)NessusCentOS Local Security Checks
critical
48230Fedora 13 : kernel-2.6.33.6-147.2.4.fc13 (2010-11462)NessusFedora Local Security Checks
medium
48228Fedora 12 : kernel-2.6.32.16-150.fc12 (2010-11412)NessusFedora Local Security Checks
medium
801494CentOS RHSA-2010-0610 Security CheckLog Correlation EngineGeneric
high