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.
Published: 2012-05-17
Score: 7.2 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-2469-1 linux-2.6 security update
EUVD EUVD EUVD-2012-2125 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.
Ubuntu USN Ubuntu USN USN-1445-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-1448-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-1452-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-1453-1 Linux kernel (EC2) vulnerabilities
Ubuntu USN Ubuntu USN USN-1455-1 Linux kernel (Oneiric backport) vulnerabilities
Ubuntu USN Ubuntu USN USN-1457-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-1459-1 Linux kernel (OMAP4) vulnerabilities
Ubuntu USN Ubuntu USN USN-1460-1 Linux kernel (OMAP4) vulnerabilities
Ubuntu USN Ubuntu USN USN-1470-1 Linux kernel (Natty backport) vulnerabilities
Ubuntu USN Ubuntu USN USN-1530-1 Linux kernel (OMAP4) vulnerabilities
History

No history.

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Linux Linux Kernel
Redhat Enterprise Linux Enterprise Mrg
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T19:26:08.495Z

Reserved: 2012-04-04T00:00:00.000Z

Link: CVE-2012-2123

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2012-05-17T11:00:38.367

Modified: 2026-04-29T01:13:23.040

Link: CVE-2012-2123

cve-icon Redhat

Severity : Important

Publid Date: 2012-04-17T00:00:00Z

Links: CVE-2012-2123 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses