CVE-2007-4849

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Summary

CVECVE-2007-4849
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2007-09-12 20:17:00 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionJFFS2, 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.

Risk And Classification

Primary CVSS: v2.0 4.4 from [email protected]

AV:L/AC:M/Au:N/C:P/I:P/A:P

Problem Types: CWE-264 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:L/AC:M/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application One Laptop Per Child Olpc Linux build_542 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
#2732 (JFFS2 does not perserve directory permissions across reboots when using a custom /sbin/init.) – One Laptop Per Child – Trac af854a3a-2127-422b-91ae-364da2661108 dev.laptop.org
Ubuntu update for kernel - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Debian -- Security Information -- DSA-1378-2 linux-2.6 af854a3a-2127-422b-91ae-364da2661108 www.debian.org
git.infradead.org Git - mtd-2.6.git/commitdiff af854a3a-2127-422b-91ae-364da2661108 git.infradead.org
[JFFS2] Fix ACL vs. mode handling. af854a3a-2127-422b-91ae-364da2661108 lists.infradead.org
Debian update for kernel - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Linux Kernel JFFS2 Filesystem Security Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Ubuntu update for kernel - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
USN-574-1: Linux kernel vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
USN-558-1: Linux kernel vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
git.infradead.org Git - mtd-2.6.git/commitdiff MITRE git.infradead.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

OrganizationPublishedContributorStatement
Red Hat2007-10-10Mark J CoxNot 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.

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