CVE-2011-2496

Public Exploit

Description

Integer overflow in the vma_to_resize function in mm/mremap.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (BUG_ON and system crash) via a crafted mremap system call that expands a memory mapping.

Category

4.9
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.15%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=716538
https://github.com/torvalds/linux/commit/982134ba62618c2d69fbbbd166d0a11ee3b7e3d8 patch exploit
http://www.openwall.com/lists/oss-security/2011/06/27/2 mailing list
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=982134ba62618c2d69fbbbd166d0a11ee3b7e3d8
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39

Frequently Asked Questions

What is the severity of CVE-2011-2496?
CVE-2011-2496 has been scored as a medium severity vulnerability.
How to fix CVE-2011-2496?
To fix CVE-2011-2496, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-2496 being actively exploited in the wild?
It is possible that CVE-2011-2496 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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