Skip to content
Fencer Vulns
medium 6.2

CVE-2007-4135 json

The NFSv4 ID mapper (nfsidmap) before 0.17 does not properly handle return values from the getpwnam_r function when performing a username l…

published 2007-09-05 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-4119

cvss
6.2
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits
0
none known

Summary

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.

Patch / fix

  • libnfsidmap Debian 11 0.18-0

debian advisories DEBIAN-CVE-2007-4135

  • nfs-utils-lib RHEL 5 1.0.8-7.2.z2

red hat advisories RHSA-2007:0951

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2007-4135 updated

nfs-utils-lib NFSv4 user id mapping flaw

  • Red Hat Enterprise Linux (v. 5 server) nfs-utils-lib 1.0.8-7.2.z2 Red Hat Enterprise Linux Desktop (v. 5 client) nfs-utils-lib 1.0.8-7.2.z2 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) nfs-utils-lib 1.0.8-7.2.z2
    fixed: vendor fix RHSA-2007:0951

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 6.2 AV:L/AC:H/Au:N/C:C/I:C/A:C

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.