CVE-2011-2183 : Race condition in the scan_get_next_rmap_item function in mm/ksm.c in the Linux

Race condition in the scan_get_next_rmap_item function in mm/ksm.c in the Linux kernel before 2.6.39.3, when Kernel SamePage Merging (KSM) is enabled, allows local users to cause a denial of service (NULL pointer dereference) or possibly have unspecified other impact via a crafted application.

Published 2012-06-13 10:24:54

Updated 2023-02-13 01:19:36

Source Red Hat, Inc.

View at NVD, CVE.org

Vulnerability category: Memory CorruptionDenial of service

Products affected by CVE-2011-2183

Linux » Linux Kernel
Versions up to, including, (<=) 2.6.39.2
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 2.6.39 Update RC5
cpe:2.3:o:linux:linux_kernel:2.6.39:rc5:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 2.6.39 Update RC2
cpe:2.3:o:linux:linux_kernel:2.6.39:rc2:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 2.6.39 Update RC6
cpe:2.3:o:linux:linux_kernel:2.6.39:rc6:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 2.6.39 Update RC7
cpe:2.3:o:linux:linux_kernel:2.6.39:rc7:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 2.6.39 Update RC4
cpe:2.3:o:linux:linux_kernel:2.6.39:rc4:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 2.6.39 Update RC3
cpe:2.3:o:linux:linux_kernel:2.6.39:rc3:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 2.6.39 Update RC1
cpe:2.3:o:linux:linux_kernel:2.6.39:rc1:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 2.6.39
cpe:2.3:o:linux:linux_kernel:2.6.39:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 2.6.39.1
cpe:2.3:o:linux:linux_kernel:2.6.39.1:*:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2011-2183

Top countries where our scanners detected CVE-2011-2183

Top open port discovered on systems with this issue 49152

IPs affected by CVE-2011-2183 1,556

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2011-2183!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2011-2183

EPSS FAQ

0.05%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 13 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2011-2183

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
4.0	MEDIUM	AV:L/AC:H/Au:N/C:N/I:N/A:C	1.9	6.9	NIST
Access Vector: Local Access Complexity: High Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete

CWE ids for CVE-2011-2183

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2011-2183

http://www.openwall.com/lists/oss-security/2011/06/06/1

oss-security - Re: CVE request: kernel: ksm: race between ksmd and exiting task
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.3

404 Not Found
https://bugzilla.redhat.com/show_bug.cgi?id=710338

710338 – (CVE-2011-2183) CVE-2011-2183 kernel: ksm: race between ksmd and exiting task
https://github.com/torvalds/linux/commit/2b472611a32a72f4a118c069c2d62a1a3f087afd

ksm: fix NULL pointer dereference in scan_get_next_rmap_item() · torvalds/linux@2b47261 · GitHub
Patch
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2b472611a32a72f4a118c069c2d62a1a3f087afd