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CVE-2012-2123
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…
High7.2EPSS 0.40%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 0.40% · top 65% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Weakness
Affected products
n/a
- affected n/a
References (11)
- RHSA-2012:0743 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.3 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2012:0670 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [oss-security] 20120419 Re: CVE request: kernel: fcaps: clear the same personality flags as suid when fcaps are used (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- DSA-2469 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 53166 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=806722 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/torvalds/linux/commit/d52fc5dde171f030170a6cb78034d166b13c9445 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1027072 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- linux-kernel-fcaps-sec-bypass(75043) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d52fc5dde171f030170a6cb78034d166b13c9445 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .