The befs_follow_link function in fs/befs/linuxvfs.c in the Linux kernel before 3.1-rc3 does not validate the length attribute of long symlinks, which allows local users to cause a denial of service (incorrect pointer dereference and OOPS) by accessing a long symlink on a malformed Be filesystem
Published Aug 29, 2011
4.9
MEDIUMCVSS 2.0
EPSS 0.51%
Description
The befs_follow_link function in fs/befs/linuxvfs.c in the Linux kernel before 3.1-rc3 does not validate the length attribute of long symlinks, which allows local users to cause a denial of service (incorrect pointer dereference and OOPS) by accessing a long symlink on a malformed Be filesystem.
Affected products
No data.
- < 3.1
- 3.1
- 3.1
- 3.1
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4, 5, 6, and Red Hat Enterprise MRG as they did not provide support for the BeOS file system.
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:L/Au:N/C:N/I:N/A:C
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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.51% (0.00506) | 40.99th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.51% (0.00506) | 39.00th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00078) | 20.72th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00046) | 19.11th | v3 (v2023.03.01) |
| May 7, 2024 | 0.05% (0.00046) | 16.11th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00046) | 14.09th | 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 (12)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=338d0f0a6fbc82407864606f5b64b75aeb3c70f2 x_refsource_CONFIRM
- http://securityreason.com/securityalert/8360 third-party-advisoryx_refsource_SREASONExploitThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.1-rc3 x_refsource_CONFIRMBroken Link
- http://www.openwall.com/lists/oss-security/2011/08/19/1 mailing-listx_refsource_MLISTExploitMailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2011/08/19/5 mailing-listx_refsource_MLISTExploitMailing ListPatchThird Party Advisory
- http://www.pre-cert.de/advisories/PRE-SA-2011-06.txt x_refsource_MISCExploitThird Party Advisory
- http://www.securityfocus.com/archive/1/519387/100/0/threaded mailing-listx_refsource_BUGTRAQExploitThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/49256 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2011-2928 Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69343 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://nvd.nist.gov/vuln/detail/CVE-2011-2928
- https://www.cve.org/CVERecord?id=CVE-2011-2928
Change history (0)
No recorded changes yet.