The btrfs_xattr_set_acl function in fs/btrfs/acl.c in btrfs in the Linux kernel 2.6.34 and earlier does not check file ownership before setting an ACL, which allows local users to bypass file permissions by setting arbitrary ACLs, as demonstrated using setfacl.
Advisories
Source ID Title
EUVD EUVD EUVD-2010-2090 The btrfs_xattr_set_acl function in fs/btrfs/acl.c in btrfs in the Linux kernel 2.6.34 and earlier does not check file ownership before setting an ACL, which allows local users to bypass file permissions by setting arbitrary ACLs, as demonstrated using setfacl.
Ubuntu USN Ubuntu USN USN-966-1 Linux kernel vulnerabilities
Fixes

Solution

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Workaround

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-07T02:17:14.285Z

Reserved: 2010-05-25T00:00:00Z

Link: CVE-2010-2071

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2010-06-16T20:30:02.513

Modified: 2025-04-11T00:51:21.963

Link: CVE-2010-2071

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses