The load_flat_shared_library function in fs/binfmt_flat.c in the flat subsystem in the Linux kernel before 2.6.31-rc6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by executing a shared flat binary, which triggers an access of an "uninitialized cred pointer."
Published Aug 14, 2009
7.8
HIGHCVSS 3.1
EPSS 0.40%
Description
The load_flat_shared_library function in fs/binfmt_flat.c in the flat subsystem in the Linux kernel before 2.6.31-rc6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by executing a shared flat binary, which triggers an access of an "uninitialized cred pointer."
Affected products
No data.
- < 2.6.31
- 2.6.31
- 2.6.31
- 2.6.31
- 2.6.31
- 2.6.31
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 3, 4, 5 or Red Hat Enterprise MRG. Red Hat does not provide support for flat binary support, and additionally this issue only affected kernels version 2.6.29-rc1 and later.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:C/I:C/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 2, 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 2, 2026 | 0.40% (0.00405) | 32.37th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.40% (0.00405) | 31.98th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00059) | 15.70th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.12th | 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 (13)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3440625d78711bee41a84cf29c3d8c579b522666 x_refsource_CONFIRMBroken Link
- http://lkml.org/lkml/2009/6/22/91 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://secunia.com/advisories/36278 third-party-advisoryx_refsource_SECUNIABroken Link
- http://thread.gmane.org/gmane.linux.hardware.blackfin.kernel.devel/1905 x_refsource_CONFIRMBroken Link
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.5 x_refsource_CONFIRMBroken Link
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc6 x_refsource_CONFIRMBroken Link
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:051 vendor-advisoryx_refsource_MANDRIVABroken Link
- http://www.openwall.com/lists/oss-security/2009/08/13/1 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/36037 vdb-entryx_refsource_BIDBroken LinkThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2009-2768 Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/52909 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://nvd.nist.gov/vuln/detail/CVE-2009-2768
- https://www.cve.org/CVERecord?id=CVE-2009-2768
Change history (0)
No recorded changes yet.