CVE-2009-2407
CVE-2009-2407 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 6.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.
Key facts
- Severity: Medium (CVSS 2.0 base score 6.9)
- EPSS exploit prediction: 1% (44th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
Description
Heap-based buffer overflow in the parse_tag_3_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 a large encrypted key size in a Tag 3 packet.
Frequently asked questions
- What is CVE-2009-2407?
- Heap-based buffer overflow in the parse_tag_3_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 a large encrypted key size in a Tag 3 packet.
- How severe is CVE-2009-2407?
- CVE-2009-2407 has a CVSS 2.0 base score of 6.9, rated medium severity.
- Is CVE-2009-2407 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2009-2407?
- CVE-2009-2407 primarily affects Linux Linux Kernel. In total, 309 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2009-2407?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2009-2407 published?
- CVE-2009-2407 was published on 2009-07-31 and last updated on 2026-06-16.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f151cd2c54ddc7714e2f740681350476cda03a28
- http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html
- http://risesecurity.org/advisories/RISE-2009003.txt
- http://secunia.com/advisories/35985
- http://secunia.com/advisories/36045
- http://secunia.com/advisories/36051
- http://secunia.com/advisories/36054
- http://secunia.com/advisories/36116
- http://secunia.com/advisories/36131
- http://secunia.com/advisories/37471
- http://www.debian.org/security/2009/dsa-1844
- http://www.debian.org/security/2009/dsa-1845
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.4
- http://www.redhat.com/support/errata/RHSA-2009-1193.html
- http://www.securityfocus.com/archive/1/505337/100/0/threaded
- http://www.securityfocus.com/archive/1/507985/100/0/threaded
- http://www.securityfocus.com/bid/35850
- http://www.ubuntu.com/usn/usn-807-1
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html
- http://www.vupen.com/english/advisories/2009/2041
- http://www.vupen.com/english/advisories/2009/3316
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11255
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8057
- https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00166.html
- https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00223.html
Affected products (309)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.1:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.2:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.3:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.4:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.5:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.6:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.7:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.8:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.8.1:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.9:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.10:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.11:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.11.1:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.11.2:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.11.3:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.11.4:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.11.5:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.11.6:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.11.7:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.11.8:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.11.9:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.11.10:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.11.11:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.11.12:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12.1:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12.2:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12.3:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12.4:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12.5:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12.6:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.13:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.13.1:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.13.2:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.13.3:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.13.4:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.13.5:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.14:*:*:*:*:*:*:*
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