CVE-2007-6733: n/a vulnerability

CVE-2007-6733: The nfs_lock function in fs/nfs/file.c in the Linux kernel 2.6.9 does not properly remove POSIX locks on fi...

The nfs_lock function in fs/nfs/file.c in the Linux kernel 2.6.9 does not properly remove POSIX locks on files that are setgid without group-execute permission, which allows local users to cause a denial of service (BUG and system crash) by locking a file on an NFS filesystem and then changing this file's permissions, a related issue to CVE-2010-0727.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 17, 2024, 01:06 UTC (UTC+00:00)

Security readout for executives and security teams

This is a local denial-of-service issue in the Linux kernel NFS file-locking path. On Linux kernel 2.6.9, a local user could trigger a kernel BUG and crash by interacting with POSIX locks on certain NFS files after changing permissions. It mainly matters for legacy NFS client systems with local user access. Exposure appears limited to old Linux kernel 2.6.9 systems using NFS filesystems where local users can lock files and affect permissions. The source bundle does not identify complete affected distributions, fixed versions, or CPEs. Treat this as a legacy-platform availability risk. It is not documented as actively exploited, but an affected NFS client could be crashed by a local user. Prioritize discovery of old 2.6.9 systems and remediation through vendor-supported kernels. Mitigation focus: Identify any Linux kernel 2.6.9 systems still using NFS filesystems.; Check RHBA-2007-0304 and vendor guidance for applicable kernel fixes.; Restrict local shell access on legacy NFS client systems..

Prepared: Jun 28, 2026, 03:36 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Mar 16, 2010, 19:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://bugzilla.redhat.com/show_bug.cgi?id=218777CVE reference · x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=570863CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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