CVE-2012-3511

Public Exploit

Description

Multiple race conditions in the madvise_remove function in mm/madvise.c in the Linux kernel before 3.4.5 allow local users to cause a denial of service (use-after-free and system crash) via vectors involving a (1) munmap or (2) close system call.

Category

6.2
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.07%
Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.ubuntu.com/usn/USN-1572-1 vendor advisory
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5
http://secunia.com/advisories/50732 third party advisory
http://www.ubuntu.com/usn/USN-1567-1 vendor advisory
http://www.ubuntu.com/usn/USN-1577-1 vendor advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9ab4233dd08036fe34a89c7dc6f47a8bf2eb29eb
https://bugzilla.redhat.com/show_bug.cgi?id=849734 patch
https://github.com/torvalds/linux/commit/9ab4233dd08036fe34a89c7dc6f47a8bf2eb29eb exploit
http://ubuntu.com/usn/usn-1529-1 vendor advisory
http://www.openwall.com/lists/oss-security/2012/08/20/13 patch mailing list
http://www.securityfocus.com/bid/55151 vdb entry
http://secunia.com/advisories/50633 third party advisory
http://secunia.com/advisories/55055 third party advisory

Frequently Asked Questions

What is the severity of CVE-2012-3511?
CVE-2012-3511 has been scored as a medium severity vulnerability.
How to fix CVE-2012-3511?
To fix CVE-2012-3511, 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-2012-3511 being actively exploited in the wild?
It is possible that CVE-2012-3511 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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