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Fencer Vulns
medium 4.6

CVE-2005-2496 json

The xntpd ntp (ntpd) daemon before 4.2.0b, when run with the -u option and using a string to specify the group, uses the group ID of the us…

published 2005-09-02 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-2497

cvss
4.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits
0
none known

Summary

The xntpd ntp (ntpd) daemon before 4.2.0b, when run with the -u option and using a string to specify the group, uses the group ID of the user instead of the group, which causes xntpd to run with different privileges than intended.

Patch / fix

  • ntp Debian 11 1:4.2.0a+stable-2sarge1

debian advisories DEBIAN-CVE-2005-2496

  • ntp RHEL 4 4.2.0.a.20040617-4.EL4.1

red hat advisories RHSA-2006:0393

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-2005-2496 updated

security flaw

  • Red Hat Enterprise Linux AS version 4 ntp 4.2.0.a.20040617-4.EL4.1 Red Hat Enterprise Linux Desktop version 4 ntp 4.2.0.a.20040617-4.EL4.1 Red Hat Enterprise Linux ES version 4 ntp 4.2.0.a.20040617-4.EL4.1 Red Hat Enterprise Linux WS version 4 ntp 4.2.0.a.20040617-4.EL4.1
    fixed: vendor fix RHSA-2006:0393

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

0.45% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

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.