jffs2 doesn't preserve permissions
Published Sep 12, 2007
4.4
MEDIUMCVSS 2.0
EPSS 0.34%
Description
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.
Affected products
No data.
- build_542
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
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.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.34% (0.00343) | 25.40th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.34% (0.00343) | 25.91th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00043) | 10.12th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 22, 2023 | 1.28% (0.01282) | 68.05th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
References (14)
- http://dev.laptop.org/ticket/2732 x_refsource_CONFIRM
- http://git.infradead.org/?p=mtd-2.6.git%3Ba=commitdiff%3Bh=9ed437c50d89eabae763dd422579f73fdebf288d x_refsource_CONFIRM
- http://lists.infradead.org/pipermail/linux-mtd-cvs/2007-August/005897.html mailing-listx_refsource_MLIST
- http://secunia.com/advisories/26978 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/28170 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/28706 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2007/dsa-1378 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/25838 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/usn-558-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/usn-574-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2007-4849 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=289111 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2007-4849
- https://www.cve.org/CVERecord?id=CVE-2007-4849
Change history (0)
No recorded changes yet.