CVE-2012-2375

Public Exploit

Description

The __nfs4_get_acl_uncached function in fs/nfs/nfs4proc.c in the NFSv4 implementation in the Linux kernel before 3.3.2 uses an incorrect length variable during a copy operation, which allows remote NFS servers to cause a denial of service (OOPS) by sending an excessive number of bitmap words in an FATTR4_ACL reply. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-4131.

Category

4.6
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.26%
Vendor Advisory redhat.com Vendor Advisory marc.info
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.2
http://rhn.redhat.com/errata/RHSA-2012-1580.html vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=822869
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=20e0fa98b751facf9a1101edaefbc19c82616a68
http://www.openwall.com/lists/oss-security/2012/05/18/13 mailing list
https://github.com/torvalds/linux/commit/20e0fa98b751facf9a1101edaefbc19c82616a68 patch exploit
http://marc.info/?l=bugtraq&m=139447903326211&w=2 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2012-2375?
CVE-2012-2375 has been scored as a medium severity vulnerability.
How to fix CVE-2012-2375?
To fix CVE-2012-2375, 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-2012-2375 being actively exploited in the wild?
It is possible that CVE-2012-2375 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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