CVE-2007-4849 : JFFS2, as used on One Laptop Per Child (OLPC) build 542 and possibly other Linux

JFFS2, as used on One Laptop Per Child (OLPC) build 542 and possibly other Linux systems, when POSIX ACL support is enabled, does not properly store permissions during (1) inode creation or (2) ACL setting, which might allow local users to access restricted files or directories after a remount of a filesystem, related to "legacy modes" and an inconsistency between dentry permissions and inode permissions.

Published 2007-09-12 20:17:00

Updated 2008-09-05 21:29:17

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2007-4849

One Laptop Per Child » Olpc Linux » Version: Build 542
cpe:2.3:a:one_laptop_per_child:olpc_linux:build_542:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2007-4849

EPSS FAQ

0.04%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 6 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2007-4849

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
4.4	MEDIUM	AV:L/AC:M/Au:N/C:P/I:P/A:P	3.4	6.4	NIST
Access Vector: Local Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial

CWE ids for CVE-2007-4849

CWE-264

Assigned by: nvd@nist.gov (Primary)

Vendor statements for CVE-2007-4849

Red Hat 2007-10-10

Not vulnerable. There is no support for jffs2 in the Linux kernel as distributed with Red Hat Enterprise Linux 2.1 or 3. There is no ACL support for jffs2 in the Linux kernel as distributed with Red Hat Enterprise Linux 4 or 5.

References for CVE-2007-4849