CVE-2010-2071: n/a vulnerability

CVE-2010-2071: The btrfs_xattr_set_acl function in fs/btrfs/acl.c in btrfs in the Linux kernel 2.6.34 and earlier does not...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 02:17 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Linux kernel Btrfs permission bug. A local user could change access control lists on files they do not own, potentially weakening file permissions. It is not described as remotely exploitable, and the provided sources do not show active exploitation. Exposure is most likely on legacy Linux systems running kernel 2.6.34 or earlier with Btrfs in use, especially multi-user hosts where untrusted local accounts exist. Treat as a moderate legacy exposure issue. It is important for old multi-user Linux estates, but it does not warrant emergency handling unless affected Btrfs hosts allow untrusted local access. Mitigation focus: Upgrade affected systems to a vendor-supported kernel containing the Btrfs ACL ownership check.; Prioritize legacy multi-user systems using Btrfs filesystems.; If patching is delayed, restrict local shell access to trusted users..

Prepared: Jun 28, 2026, 02:01 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 16, 2010, 20:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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