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CVE-2009-1630

UnknownEPSS 0.48%

Last modified

CVE-2009-1630 is a vulnerability of currently unknown severity. The nfs_permission function in fs/nfs/dir.c in the NFS client implementation in the Linux kernel 2.6.29.3 and earlier, when atomic_open is available, does not check execute (aka EXEC or MAY_EXEC) permission bits, which allows local users to bypass permissions and execute files, as demonstrated by files on an NFSv4 fileserver.. EPSS estimates a 0.48% chance of exploitation in the next 30 days.

Description

The nfs_permission function in fs/nfs/dir.c in the NFS client implementation in the Linux kernel 2.6.29.3 and earlier, when atomic_open is available, does not check execute (aka EXEC or MAY_EXEC) permission bits, which allows local users to bypass permissions and execute files, as demonstrated by files on an NFSv4 fileserver.

Metrics

EPSS Probability
0.48%

38.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel<= 2.6.29.3
OpensuseOpensuse11.0
OpensuseOpensuse11.1
DebianDebian Linux4.0
DebianDebian Linux5.0
CanonicalUbuntu Linux6.06
CanonicalUbuntu Linux8.04
CanonicalUbuntu Linux8.10
CanonicalUbuntu Linux9.04
VmwareEsx2.5.5
VmwareEsx3.0.3
VmwareEsx3.5
VmwareEsx4.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2009-1630?
The nfs_permission function in fs/nfs/dir.c in the NFS client implementation in the Linux kernel 2.6.29.3 and earlier, when atomic_open is available, does not check execute (aka EXEC or MAY_EXEC) permission bits, which allows local users to bypass permissions and execute files, as demonstrated by files on an NFSv4 fileserver.
How severe is CVE-2009-1630?
Severity scoring for CVE-2009-1630 is pending analysis. The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.
How do I fix CVE-2009-1630?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-1630?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST