CVE-2009-2406
MediumStack-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.
CVSS 2.0 score
6.9
AV:L/AC:M/Au:N/C:C/I:C/A:C
Weakness type
CWE-119CVE-2009-2406 is a Buffer Overflow vulnerability
What is Buffer Overflow?
The product performs operations on a memory buffer but reads or writes outside its intended boundaries. Learn more on MITRE CWE
References
The following references provide additional information about CVE-2009-2406 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Risesecurityhttp://risesecurity.org/advisories/RISE-2009002.txtExploit
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Vendor Advisory
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Vendor Advisory
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Vendor Advisory
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Vendor Advisory
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Vendor Advisory
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Securitytrackerhttp://www.securitytracker.com/id?1022663
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Ubuntu Securityhttp://www.ubuntu.com/usn/usn-807-1
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PatchKernel patch commithttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6352a29305373ae6196491e6d4669f301e26492e
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PatchKernel patch commithttp://www.debian.org/security/2009/dsa-1844
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PatchKernel patch commithttp://www.debian.org/security/2009/dsa-1845
Frequently asked questions
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What is CVE-2009-2406?
CVE-2009-2406 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.9 out of 10 , classified as a Buffer Overflow flaw (CWE-119) . CVE-2009-2406 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2009-2406?
CVE-2009-2406 has a CVSS score of 6.9 out of 10, rated Medium severity (CVSS 2.0). The vector string is
AV:L/AC:M/Au:N/C:C/I:C/A:C. -
Is there a patch available for CVE-2009-2406?
No patch is currently available for CVE-2009-2406. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2009-2406 actively exploited?
No — CVE-2009-2406 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
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What is Buffer Overflow (CWE-119)?
The product performs operations on a memory buffer but reads or writes outside its intended boundaries. View CWE-119 on MITRE CWE →