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.

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-1809-1 New Linux 2.6.26 packages fix several vulnerabilities
Debian DSA Debian DSA DSA-1844-1 New Linux 2.6.24 packages fix several vulnerabilities
Debian DSA Debian DSA DSA-1865-1 New Linux 2.6.18 packages fix several vulnerabilities
EUVD EUVD EUVD-2009-1625 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.
Ubuntu USN Ubuntu USN USN-793-1 Linux kernel vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

References
Link Providers
http://article.gmane.org/gmane.linux.nfs/26592 cve-icon cve-icon
http://bugzilla.linux-nfs.org/show_bug.cgi?id=131 cve-icon cve-icon
http://linux-nfs.org/pipermail/nfsv4/2006-November/005313.html cve-icon cve-icon
http://linux-nfs.org/pipermail/nfsv4/2006-November/005323.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00001.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00004.html cve-icon cve-icon
http://secunia.com/advisories/35106 cve-icon cve-icon
http://secunia.com/advisories/35298 cve-icon cve-icon
http://secunia.com/advisories/35394 cve-icon cve-icon
http://secunia.com/advisories/35656 cve-icon cve-icon
http://secunia.com/advisories/35847 cve-icon cve-icon
http://secunia.com/advisories/36051 cve-icon cve-icon
http://secunia.com/advisories/36327 cve-icon cve-icon
http://secunia.com/advisories/37471 cve-icon cve-icon
http://wiki.rpath.com/Advisories:rPSA-2009-0111 cve-icon cve-icon
http://www.debian.org/security/2009/dsa-1809 cve-icon cve-icon
http://www.debian.org/security/2009/dsa-1844 cve-icon cve-icon
http://www.debian.org/security/2009/dsa-1865 cve-icon cve-icon
http://www.mandriva.com/security/advisories?name=MDVSA-2009:135 cve-icon cve-icon
http://www.mandriva.com/security/advisories?name=MDVSA-2009:148 cve-icon cve-icon
http://www.openwall.com/lists/oss-security/2009/05/13/2 cve-icon cve-icon
http://www.redhat.com/support/errata/RHSA-2009-1157.html cve-icon cve-icon
http://www.securityfocus.com/archive/1/505254/100/0/threaded cve-icon cve-icon
http://www.securityfocus.com/archive/1/507985/100/0/threaded cve-icon cve-icon
http://www.securityfocus.com/bid/34934 cve-icon cve-icon
http://www.ubuntu.com/usn/usn-793-1 cve-icon cve-icon
http://www.vmware.com/security/advisories/VMSA-2009-0016.html cve-icon cve-icon
http://www.vupen.com/english/advisories/2009/1331 cve-icon cve-icon
http://www.vupen.com/english/advisories/2009/3316 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=500297 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2009-1630 cve-icon
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8543 cve-icon cve-icon
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9990 cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2009-1630 cve-icon
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-07T05:20:34.608Z

Reserved: 2009-05-14T00:00:00

Link: CVE-2009-1630

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2009-05-14T17:30:00.780

Modified: 2025-04-09T00:30:58.490

Link: CVE-2009-1630

cve-icon Redhat

Severity : Moderate

Publid Date: 2009-05-09T00:00:00Z

Links: CVE-2009-1630 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses