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…

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.

Scores

EPSS (exploitation in 30 days)

0.48% · top 58% of all CVEs (6 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.4.

Weakness

• n/a
• CWE-264 (opens in a new tab)All about CWE-264 and its CVEs

Affected products

• n/a

  • affected n/a

References (32)

• MDVSA-2009:135 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• DSA-1865 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• http://wiki.rpath.com/Advisories:rPSA-2009-0111 (opens in a new tab)x_refsource_CONFIRMx_transferred
• [linux-nfs] 20090509 [NFS] [PATCH] nfs: Fix NFS v4 client handling of MAY_EXEC in nfs_permission. (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• 34934 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• 37471 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• [nfsv4] 20061116 Status of execute permissions in NFSv4 ACLs ? (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• [oss-security] 20090513 CVE request: kernel: problem with NFS v4 client handling of MAY_EXEC in nfs_permission (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• MDVSA-2009:148 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• 35656 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• oval:org.mitre.oval:def:9990 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• DSA-1844 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• http://www.vmware.com/security/advisories/VMSA-2009-0016.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• ADV-2009-1331 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• RHSA-2009:1157 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=500297 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 35106 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 20090724 rPSA-2009-0111-1 kernel (opens in a new tab)mailing-listx_refsource_BUGTRAQx_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
• 35298 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 36327 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• oval:org.mitre.oval:def:8543 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• SUSE-SA:2009:031 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• http://bugzilla.linux-nfs.org/show_bug.cgi?id=131 (opens in a new tab)x_refsource_CONFIRMx_transferred
• USN-793-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• [nfsv4] 20061117 [Patch] Re: Status of execute permissions in NFSv4 ACLs ? (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• SUSE-SA:2009:038 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• ADV-2009-3316 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 35394 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• DSA-1809 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• 35847 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_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-2009-1630](https://trackcve.app/badge/CVE-2009-1630.svg)](https://trackcve.app/cve/CVE-2009-1630)

Record last updated 7 Aug 2024, 05:20 UTC.