Privilege escalation in Linux kernel



| Updated: 2017-01-04
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2010-3081
CWE-ID CWE-264
Exploitation vector Local
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Privilege escalation

EUVDB-ID: #VU3476

Risk: Medium

CVSSv4.0: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Green]

CVE-ID: CVE-2010-3081

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes

Description

The vulnerability allows a local user to escalate privileges.

The vulnerability exists due to improper allocation of userspace memory required for the 32-bit compatibility layer within compat_alloc_user_space() function in include/asm/compat.h file on on 64-bit platforms. A local user can call compat_mc_getsockopt() function and gain control over vulnerable system.

Successful exploitation of the vulnerability allows a local non-privileged user to gain root privileges.

Mitigation

Update to kernel version 2.6.36-rc4-git2 or newer.

Vulnerable software versions

Linux kernel: 2.6.0 - 2.6.36 rc3

CPE2.3 External links

http://www.securityfocus.com/archive/1/514938/30/30/threaded
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c41d68a513c71e35a14f66d7...


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.



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