CVE-2012-2123

Description

The cap_bprm_set_creds function in security/commoncap.c in the Linux kernel before 3.3.3 does not properly handle the use of file system capabilities (aka fcaps) for implementing a privileged executable file, which allows local users to bypass intended personality restrictions via a crafted application, as demonstrated by an attack that uses a parent process to disable ASLR.

Category

7.2
CVSS
Severity: High
CVSS 2.0 •
EPSS 0.06%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://rhn.redhat.com/errata/RHSA-2012-0743.html vdb entry third party advisory vendor advisory
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.3 vendor advisory
http://rhn.redhat.com/errata/RHSA-2012-0670.html vdb entry third party advisory vendor advisory
http://www.openwall.com/lists/oss-security/2012/04/20/6 third party advisory mailing list
http://www.debian.org/security/2012/dsa-2469 third party advisory vendor advisory
http://www.securityfocus.com/bid/53166 vdb entry third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=806722 issue tracking
https://github.com/torvalds/linux/commit/d52fc5dde171f030170a6cb78034d166b13c9445 third party advisory
http://www.securitytracker.com/id?1027072 vdb entry third party advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/75043 vdb entry
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d52fc5dde171f030170a6cb78034d166b13c9445 broken link

Frequently Asked Questions

What is the severity of CVE-2012-2123?
CVE-2012-2123 has been scored as a high severity vulnerability.
How to fix CVE-2012-2123?
To fix CVE-2012-2123, 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-2012-2123 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2012-2123 is being actively exploited. 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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