CVE - CVE-2012-2123

CVE-ID
CVE-2012-2123	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:1027072 URL:http://www.securitytracker.com/id?1027072 MISC:53166 URL:http://www.securityfocus.com/bid/53166 MISC:DSA-2469 URL:http://www.debian.org/security/2012/dsa-2469 MISC:RHSA-2012:0670 URL:http://rhn.redhat.com/errata/RHSA-2012-0670.html MISC:RHSA-2012:0743 URL:http://rhn.redhat.com/errata/RHSA-2012-0743.html MISC:[oss-security] 20120419 Re: CVE request: kernel: fcaps: clear the same personality flags as suid when fcaps are used URL:http://www.openwall.com/lists/oss-security/2012/04/20/6 MISC:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d52fc5dde171f030170a6cb78034d166b13c9445 URL:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d52fc5dde171f030170a6cb78034d166b13c9445 MISC:http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.3 URL:http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.3 MISC:https://bugzilla.redhat.com/show_bug.cgi?id=806722 URL:https://bugzilla.redhat.com/show_bug.cgi?id=806722 MISC:https://github.com/torvalds/linux/commit/d52fc5dde171f030170a6cb78034d166b13c9445 URL:https://github.com/torvalds/linux/commit/d52fc5dde171f030170a6cb78034d166b13c9445 MISC:linux-kernel-fcaps-sec-bypass(75043) URL:https://exchange.xforce.ibmcloud.com/vulnerabilities/75043
Assigning CNA
Red Hat, Inc.
Date Record Created
20120404	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20120404)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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