kernel: create_elf_tables can leave urandom in a bad state
Published Jan 19, 2010
7.2
HIGHCVSS 2.0
EPSS 0.97%
Description
Use-after-free vulnerability in the fasync_helper function in fs/fcntl.c in the Linux kernel before 2.6.33-rc4-git1 allows local users to gain privileges via vectors that include enabling O_ASYNC (aka FASYNC or FIOASYNC) on a locked file, and then closing this file.
Affected products
No data.
- ≤ 2.6.33
- 2.6.0
- 2.6.1
- 2.6.2
- 2.6.3
- 2.6.4
- 2.6.5
- 2.6.6
- 2.6.7
- 2.6.8
- 2.6.8.1
- 2.6.9
- 2.6.10
- 2.6.11
- 2.6.11.1
- 2.6.11.2
- 2.6.11.3
- 2.6.11.4
- 2.6.11.5
- 2.6.11.6
- 2.6.11.7
- 2.6.11.8
- 2.6.11.9
- 2.6.11.10
- 2.6.11.11
- 2.6.11.12
- 2.6.12
- 2.6.12.1
- 2.6.12.2
- 2.6.12.3
- 2.6.12.4
- 2.6.12.5
- 2.6.12.6
- 2.6.13
- 2.6.13.1
- 2.6.13.2
- 2.6.13.3
- 2.6.13.4
- 2.6.13.5
- 2.6.14
- 2.6.14.1
- 2.6.14.3
- 2.6.14.4
- 2.6.14.5
- 2.6.14.6
- 2.6.14.7
- 2.6.15
- 2.6.15.1
- 2.6.15.2
- 2.6.15.3
- 2.6.15.4
- 2.6.15.5
- 2.6.15.6
- 2.6.15.7
- 2.6.16
- 2.6.16.1
- 2.6.16.2
- 2.6.16.3
- 2.6.16.4
- 2.6.16.5
- 2.6.16.6
- 2.6.16.7
- 2.6.16.8
- 2.6.16.9
- 2.6.16.10
- 2.6.16.11
- 2.6.16.12
- 2.6.16.13
- 2.6.16.14
- 2.6.16.15
- 2.6.16.16
- 2.6.16.17
- 2.6.16.18
- 2.6.16.19
- 2.6.16.20
- 2.6.16.21
- 2.6.16.22
- 2.6.16.23
- 2.6.16.24
- 2.6.16.25
- 2.6.16.26
- 2.6.16.27
- 2.6.16.28
- 2.6.16.29
- 2.6.16.30
- 2.6.16.31
- 2.6.17
- 2.6.17.1
- 2.6.17.2
- 2.6.17.3
- 2.6.17.4
- 2.6.17.5
- 2.6.17.6
- 2.6.17.7
- 2.6.17.8
- 2.6.17.9
- 2.6.17.10
- 2.6.17.11
- 2.6.17.12
- 2.6.17.13
- 2.6.17.14
- 2.6.18.1
- 2.6.18.2
- 2.6.18.3
- 2.6.18.4
- 2.6.18.5
- 2.6.18.6
- 2.6.18.7
- 2.6.18.8
- 2.6.22
- 2.6.22.2
- 2.6.22.3
- 2.6.22.4
- 2.6.22.5
- 2.6.22.6
- 2.6.22.7
- 2.6.23
- 2.6.23
- 2.6.23
- 2.6.23.1
- 2.6.23.2
- 2.6.23.3
- 2.6.23.4
- 2.6.23.5
- 2.6.23.6
- 2.6.23.7
- 2.6.24
- 2.6.24
- 2.6.24
- 2.6.24
- 2.6.24
- 2.6.32
- 2.6.32.1
- 2.6.32.2
- 2.6.32.3
- 2.6.32.4
- 2.6.33
- 2.6.33
- 2.6.33
No data.
MRG for RHEL-5
kernel-rt-0:2.6.24.7-149.el5rt
Fixed · RHSA-2010:0161
Red Hat Enterprise Linux 5
kernel-0:2.6.18-164.11.1.el5
Fixed · RHSA-2010:0046
Red Hat Enterprise Linux 5.3.Z - Server Only
kernel-0:2.6.18-128.14.1.el5
Fixed · RHSA-2010:0149
| Product | Package | State | Advisory |
|---|---|---|---|
| MRG for RHEL-5 | kernel-rt-0:2.6.24.7-149.el5rt | Fixed | RHSA-2010:0161 |
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-164.11.1.el5 | Fixed | RHSA-2010:0046 |
| Red Hat Enterprise Linux 5.3.Z - Server Only | kernel-0:2.6.18-128.14.1.el5 | Fixed | RHSA-2010:0149 |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 3, 4 and Red Hat Enterprise MRG. Shipped kernels do not include upstream commit 233e70f4 that introduced the problem.
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: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 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 (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.97% (0.00971) | 60.54th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.97% (0.00971) | 57.16th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.12% (0.00117) | 28.00th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 0.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 0.50th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.22% (0.03220) | 84.21th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.22% (0.03220) | 82.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.22% (0.03220) | 65.30th | v2 (v2022.01.01) |
References (19)
- http://archives.neohapsis.com/archives/fulldisclosure/2010-01/0252.html mailing-listx_refsource_FULLDISCExploit
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=53281b6d34d44308372d16acb7fb5327609f68b6 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.html vendor-advisoryx_refsource_SUSE
- http://lock.cmpxchg8b.com/5ebe2294ecd0e0f08eab7690d2a6ee69/create_elf_tables.c x_refsource_MISCExploit
- http://secunia.com/advisories/38199 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/39033 third-party-advisoryx_refsource_SECUNIA
- http://support.avaya.com/css/P8/documents/100073666 x_refsource_CONFIRM
- http://twitter.com/taviso/statuses/7744108017 x_refsource_MISCPatch
- http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.33-rc4-git1.bz2 x_refsource_CONFIRMPatch
- http://www.redhat.com/support/errata/RHSA-2010-0161.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/37806 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2009-4141 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=547906 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2009-4141
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7054 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9201 vdb-entrysignaturex_refsource_OVAL
- https://rhn.redhat.com/errata/RHSA-2010-0046.html vendor-advisoryx_refsource_REDHAT
- https://rhn.redhat.com/errata/RHSA-2010-0095.html vendor-advisoryx_refsource_REDHAT
- https://www.cve.org/CVERecord?id=CVE-2009-4141
Change history (0)
No recorded changes yet.