MEDIUM
kernel: ecryptfs stack overflow in parse_tag_11_packet()
Published Jul 31, 2009
6.9
MEDIUMCVSS 2.0
EPSS 0.50%
Description
Stack-based buffer overflow in the parse_tag_11_packet function in fs/ecryptfs/keystore.c in the eCryptfs subsystem in the Linux kernel before 2.6.30.4 allows local users to cause a denial of service (system crash) or possibly gain privileges via vectors involving a crafted eCryptfs file, related to not ensuring that the key signature length in a Tag 11 packet is compatible with the key signature buffer size.
Affected products
No data.
OR
- 2.6.24.7
- 2.6.25.15
- ≤ 2.6.30.3
- 2.2.6
- 2.6
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.0
- 2.6.1
- 2.6.1
- 2.6.1
- 2.6.1
- 2.6.2
- 2.6.2
- 2.6.2
- 2.6.2
- 2.6.2.27.13
- 2.6.3
- 2.6.3
- 2.6.3
- 2.6.3
- 2.6.3
- 2.6.4
- 2.6.4
- 2.6.4
- 2.6.4
- 2.6.5
- 2.6.5
- 2.6.5
- 2.6.5
- 2.6.6
- 2.6.6
- 2.6.6
- 2.6.6
- 2.6.7
- 2.6.7
- 2.6.7
- 2.6.7
- 2.6.8
- 2.6.8
- 2.6.8
- 2.6.8
- 2.6.8
- 2.6.8.1
- 2.6.8.1.5
- 2.6.8.1.5
- 2.6.8.1.5
- 2.6.8.1.5
- 2.6.8.1.5
- 2.6.8.1.5
- 2.6.8.1.5
- 2.6.8.1.5
- 2.6.8.1.5
- 2.6.8.1.5
- 2.6.8.1.5
- 2.6.8.1.5
- 2.6.8.1.5
- 2.6.8.1.5
- 2.6.8.1.5
- 2.6.8.1.5
- 2.6.9
- 2.6.9
- 2.6.9
- 2.6.9
- 2.6.9
- 2.6.9
- 2.6.10
- 2.6.10
- 2.6.10
- 2.6.10
- 2.6.11
- 2.6.11
- 2.6.11
- 2.6.11
- 2.6.11
- 2.6.11
- 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
- 2.6.11_rc1_bk6
- 2.6.12
- 2.6.12
- 2.6.12
- 2.6.12
- 2.6.12
- 2.6.12
- 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
- 2.6.12.12
- 2.6.12.22
- 2.6.13
- 2.6.13
- 2.6.13
- 2.6.13
- 2.6.13
- 2.6.13
- 2.6.13
- 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
- 2.6.14
- 2.6.14
- 2.6.14
- 2.6.14
- 2.6.14.1
- 2.6.14.2
- 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
- 2.6.15
- 2.6.15
- 2.6.15
- 2.6.15
- 2.6.15
- 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
- 2.6.15.11
- 2.6.16
- 2.6.16
- 2.6.16
- 2.6.16
- 2.6.16
- 2.6.16
- 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
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- 2.6.16.10
- 2.6.16.11
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- 2.6.16.13
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- 2.6.16.15
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- 2.6.16.18
- 2.6.16.19
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- 2.6.16.27
- 2.6.16.28
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- 2.6.16.30
- 2.6.16.31
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- 2.6.16.35
- 2.6.16.36
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- 2.6.16.38
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- 2.6.16.40
- 2.6.16.41
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- 2.6.16.43
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- 2.6.16.46
- 2.6.16.47
- 2.6.16.48
- 2.6.16.49
- 2.6.16.50
- 2.6.16.51
- 2.6.16.52
- 2.6.16.53
- 2.6.16.54
- 2.6.16.55
- 2.6.16.56
- 2.6.16.57
- 2.6.16.58
- 2.6.16.59
- 2.6.16.60
- 2.6.16.61
- 2.6.16.62
- 2.6.16_rc7
- 2.6.17
- 2.6.17
- 2.6.17
- 2.6.17
- 2.6.17
- 2.6.17
- 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
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- 2.6.17.11
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- 2.6.17.13
- 2.6.17.14
- 2.6.18
- 2.6.18
- 2.6.18
- 2.6.18
- 2.6.18
- 2.6.18
- 2.6.18
- 2.6.18
- 2.6.18
- 2.6.18.0
- 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
- 2.6.19
- 2.6.19
- 2.6.19
- 2.6.19
- 2.6.19
- 2.6.19.1
- 2.6.19.2
- 2.6.19.3
- 2.6.19.4
- 2.6.19.5
- 2.6.19.6
- 2.6.19.7
- 2.6.20
- 2.6.20
- 2.6.20.1
- 2.6.20.2
- 2.6.20.3
- 2.6.20.4
- 2.6.20.5
- 2.6.20.6
- 2.6.20.7
- 2.6.20.8
- 2.6.20.9
- 2.6.20.10
- 2.6.20.11
- 2.6.20.12
- 2.6.20.13
- 2.6.20.14
- 2.6.20.15
- 2.6.20.16
- 2.6.20.17
- 2.6.20.18
- 2.6.20.19
- 2.6.20.20
- 2.6.20.21
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21
- 2.6.21.1
- 2.6.21.2
- 2.6.21.3
- 2.6.21.4
- 2.6.21.5
- 2.6.21.6
- 2.6.21.7
- 2.6.22
- 2.6.22
- 2.6.22.1
- 2.6.22.2
- 2.6.22.3
- 2.6.22.4
- 2.6.22.5
- 2.6.22.6
- 2.6.22.6
- 2.6.22.7
- 2.6.22.10
- 2.6.22.11
- 2.6.22.12
- 2.6.22.13
- 2.6.22.14
- 2.6.22.15
- 2.6.22.16
- 2.6.22.17
- 2.6.22.18
- 2.6.22.19
- 2.6.22.20
- 2.6.22.21
- 2.6.22.22
- 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
- 2.6.23.9
- 2.6.23.14
- 2.6.24
- 2.6.24
- 2.6.27
- 2.6.27
- 2.6.27
- 2.6.27
- 2.6.27
- 2.6.27
- 2.6.27
- 2.6.27
- 2.6.27
- 2.6.27.2
- 2.6.27.3
- 2.6.27.4
- 2.6.27.5
- 2.6.27.6
- 2.6.27.7
- 2.6.27.8
- 2.6.27.9
- 2.6.27.20
- 2.6.27.21
- 2.6.27.22
- 2.6.27.23
- 2.6.27.24
- 2.6.28
- 2.6.28
- 2.6.28
- 2.6.28
- 2.6.28
- 2.6.28
- 2.6.28
- 2.6.28
- 2.6.28
- 2.6.28.1
- 2.6.28.2
- 2.6.28.3
- 2.6.28.4
- 2.6.28.5
- 2.6.28.6
- 2.6.28.7
- 2.6.28.8
- 2.6.28.9
- 2.6.28.10
- 2.6.29
- 2.6.29
- 2.6.29
- 2.6.29
- 2.6.29
- 2.6.29
- 2.6.29.3
- 2.6.29.rc1
- 2.6.29.rc2
- 2.6.29.rc2-git1
- 2.6.30
- 2.6.30.1
- 2.6.30.2
- 2.6_test9_cvs
No data.
Red Hat Enterprise Linux 5
kernel-0:2.6.18-128.4.1.el5
Fixed · RHSA-2009:1193
Red Hat Enterprise Linux 5.3.Z - Server Only
kernel-0:2.6.18-128.4.1.el5
Fixed · RHSA-2009:1193
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-128.4.1.el5 | Fixed | RHSA-2009:1193 |
| Red Hat Enterprise Linux 5.3.Z - Server Only | kernel-0:2.6.18-128.4.1.el5 | Fixed | RHSA-2009:1193 |
No package ranges for this CVE.
Remediation
Red Hat statement
The Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, and Red Hat Enterprise MRG did not include support for eCryptfs, and therefore are not affected by this issue.
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.
6.9 MEDIUM NVD
AV:L/AC:M/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.50% 0.00498
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00498
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 | 0.50% (0.00498) | 40.41th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.50% (0.00498) | 38.53th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.28% (0.00281) | 49.44th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.92th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.04% (0.00044) | 10.38th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.31th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
Weaknesses (2)
References (31)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6352a29305373ae6196491e6d4669f301e26492e x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html vendor-advisoryx_refsource_SUSE
- http://risesecurity.org/advisories/RISE-2009002.txt x_refsource_MISCExploit
- http://secunia.com/advisories/35985 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/36045 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/36051 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/36054 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/36116 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/36131 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/37471 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2009/dsa-1844 vendor-advisoryx_refsource_DEBIANPatch
- http://www.debian.org/security/2009/dsa-1845 vendor-advisoryx_refsource_DEBIANPatch
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.4 x_refsource_CONFIRMVendor Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:029 vendor-advisoryx_refsource_MANDRIVA
- http://www.redhat.com/support/errata/RHSA-2009-1193.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/archive/1/505334/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/507985/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/35851 vdb-entryx_refsource_BIDPatch
- http://www.securitytracker.com/id?1022663 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/usn-807-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html x_refsource_CONFIRM
- http://www.vupen.com/english/advisories/2009/2041 vdb-entryx_refsource_VUPENPatchVendor Advisory
- http://www.vupen.com/english/advisories/2009/3316 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2009-2406 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=512861 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2009-2406
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10072 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8246 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2009-2406
- https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00166.html vendor-advisoryx_refsource_FEDORA
- https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00223.html vendor-advisoryx_refsource_FEDORA
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Jul 31, 2009
Updated Aug 7, 2024
Reserved Jul 9, 2009
Link CVE-2009-2406
CISA Vulnrichment
Updated n/a