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CVE-2007-4135

6.2 · MEDIUM

The NFSv4 ID mapper (nfsidmap) before 0.17 does not properly handle return values from the getpwnam_r function when performing a username lookup, which can cause it to report a file as being owned…

Published Sep 5, 2007nfsv4EPSS 0.34%

Overview

CVE-2007-4135 is a medium-severity vulnerability affecting nfsv4 nfsidmap. It was published on September 5, 2007 and has a CVSS 2.0 base score of 6.2 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.2, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

The NFSv4 ID mapper (nfsidmap) before 0.17 does not properly handle return values from the getpwnam_r function when performing a username lookup, which can cause it to report a file as being owned by "root" instead of "nobody" if the file exists on the server but not on the client.

Remediation

Check the references section for vendor advisories and patches from nfsv4. Update nfsidmap to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
nfsv4nfsidmap0Affected

References

Refosvdb.org/45825Refsecunia.com/advisories/26674Refsecunia.com/advisories/27043Refwww.mandriva.com/security/advisories?name=MDKSA-2007:240Refwww.novell.com/linux/security/advisories/2007_18_sr.htmlRefwww.redhat.com/support/errata/RHSA-2007-0951.htmlRefwww.securityfocus.com/bid/26767Refexchange.xforce.ibmcloud.com/vulnerabilities/36396Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9864Refosvdb.org/45825

How CyberStrike helps

Frequently asked questions

What is CVE-2007-4135?

CVE-2007-4135 is a medium-severity vulnerability affecting nfsv4 nfsidmap. It was published on September 5, 2007 and has a CVSS 2.0 base score of 6.2 (MEDIUM).

How severe is CVE-2007-4135?

This vulnerability has a CVSS 2.0 base score of 6.2, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2007-4135?

Check the references section for vendor advisories and patches from nfsv4. Update nfsidmap to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2007-4135?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2007-4135 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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