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CVE-2012-2123
Published: May 17, 2012
Modified: Aug 6, 2024
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
References
RHSA-2012:0743
vendor-advisory
x_refsource_REDHAT
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.3
x_refsource_CONFIRM
RHSA-2012:0670
vendor-advisory
x_refsource_REDHAT
[oss-security] 20120419 Re: CVE request: kernel: fcaps: clear the same personality flags as suid when fcaps are used
mailing-list
x_refsource_MLIST
DSA-2469
vendor-advisory
x_refsource_DEBIAN
53166
vdb-entry
x_refsource_BID
https://bugzilla.redhat.com/show_bug.cgi?id=806722
x_refsource_CONFIRM
1027072
vdb-entry
x_refsource_SECTRACK
linux-kernel-fcaps-sec-bypass(75043)
vdb-entry
x_refsource_XF
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