CVE-2010-2071

Public Exploit

Description

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.

Category

4.6
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.05%
Third-Party Advisory lkml.org Third-Party Advisory openwall.com Third-Party Advisory openwall.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=2f26afba
http://lkml.org/lkml/2010/5/17/544 mailing list exploit third party advisory patch
http://www.openwall.com/lists/oss-security/2010/06/14/2 third party advisory mailing list
http://www.openwall.com/lists/oss-security/2010/06/11/3 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2010-2071?
CVE-2010-2071 has been scored as a medium severity vulnerability.
How to fix CVE-2010-2071?
To fix CVE-2010-2071, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2010-2071 being actively exploited in the wild?
It is possible that CVE-2010-2071 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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