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CVE-2010-2071

Date: June 16, 2010

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.

Language: C

Severity Score

Related Resources (7)

http://lkml.org/lkml/2010/5/17/544
http://www.openwall.com/lists/oss-security/2010/06/11/3
https://nvd.nist.gov/vuln/detail/CVE-2010-2071
http://www.openwall.com/lists/oss-security/2010/06/14/2
https://people.canonical.com/~ubuntu-security/cve/CVE-2010-2071
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=2f26afba
https://www.mend.io/vulnerability-database/CVE-2010-2071

Severity Score

Weakness Type (CWE)

Permissions, Privileges, and Access Control

CWE-264

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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