Race condition in Linux kernel - CVE-2012-2373
Published: August 9, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43755
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-2373
CWE-ID: CWE-362
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The Linux kernel before 3.4.5 on the x86 platform, when Physical Address Extension (PAE) is enabled, does not properly use the Page Middle Directory (PMD), which allows local users to cause a denial of service (panic) via a crafted application that triggers a race condition.
How to mitigate CVE-2012-2373
Install update from vendor's website.
Sources
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=26c191788f18129af0eb32a358cdaea0c7479626
- http://marc.info/?l=bugtraq&m=139447903326211&w=2
- http://rhn.redhat.com/errata/RHSA-2012-0743.html
- http://ubuntu.com/usn/usn-1529-1
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5
- http://www.openwall.com/lists/oss-security/2012/05/18/11
- https://bugzilla.redhat.com/show_bug.cgi?id=822821
- https://github.com/torvalds/linux/commit/26c191788f18129af0eb32a358cdaea0c7479626