Stack-based buffer overflow in the parse_tag_11_packet function in fs/ecryptfs/keystore.c in the eCryptfs subsystem in the Linux kernel…

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.

Scores

EPSS (exploitation in 30 days)

0.50% · top 57% of all CVEs (5 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.9.

Weakness

• n/a
• CWE-119 (opens in a new tab)All about CWE-119 and its CVEs

Affected products

• n/a

  • affected n/a

References (27)

• 35851 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• 35985 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 36131 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 20090728 [RISE-2009002] Linux eCryptfs parse_tag_11_packet Literal Data Buffer Overflow Vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6352a29305373ae6196491e6d4669f301e26492e (opens in a new tab)x_refsource_CONFIRMx_transferred
• 37471 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• http://risesecurity.org/advisories/RISE-2009002.txt (opens in a new tab)x_refsource_MISCx_transferred
• FEDORA-2009-8144 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• DSA-1844 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• USN-807-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• http://www.vmware.com/security/advisories/VMSA-2009-0016.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• RHSA-2009:1193 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• oval:org.mitre.oval:def:10072 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• oval:org.mitre.oval:def:8246 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.4 (opens in a new tab)x_refsource_CONFIRMx_transferred
• SUSE-SR:2009:015 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• FEDORA-2009-8264 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• 20091120 VMSA-2009-0016 VMware vCenter and ESX update release and vMA patch release address multiple security issue in third party components (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 36051 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 36045 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 36116 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• MDVSA-2011:029 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• 36054 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• ADV-2009-2041 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• DSA-1845 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• 1022663 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• ADV-2009-3316 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2009-2406](https://trackcve.app/badge/CVE-2009-2406.svg)](https://trackcve.app/cve/CVE-2009-2406)

Record last updated 7 Aug 2024, 05:52 UTC.