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Fencer Vulns
medium 5.0

CVE-2007-4565 json

sink.c in fetchmail before 6.3.9 allows context-dependent attackers to cause a denial of service (NULL dereference and application crash) b…

published 2007-08-28 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-4547

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 80%
public exploits
0
none known

Summary

sink.c in fetchmail before 6.3.9 allows context-dependent attackers to cause a denial of service (NULL dereference and application crash) by refusing certain warning messages that are sent over SMTP.

Patch / fix

  • fetchmail Debian 14, Debian 13, Debian 12 6.3.8-8

debian advisories DEBIAN-CVE-2007-4565

  • fetchmail RHEL 3 6.2.0-3.el3.5
  • fetchmail RHEL 4 6.2.5-6.0.1.el4_8.1
  • fetchmail RHEL 5 6.3.6-1.1.el5_3.1

red hat advisories RHSA-2009:1427

  • fetchmail openSUSE Tumbleweed 6.4.21-2.1

opensuse advisories openSUSE-SU-2024:10753-1

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-2007-4565 updated cvss 2.6

Fetchmail NULL pointer dereference

  • Red Hat Desktop version 3 fetchmail 6.2.0-3.el3.5 Red Hat Enterprise Linux (v. 5 server) fetchmail 6.3.6-1.1.el5_3.1 Red Hat Enterprise Linux AS version 3 fetchmail 6.2.0-3.el3.5 Red Hat Enterprise Linux AS version 4 fetchmail 6.2.5-6.0.1.el4_8.1 Red Hat Enterprise Linux Desktop version 4 fetchmail 6.2.5-6.0.1.el4_8.1 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) fetchmail 6.3.6-1.1.el5_3.1
    +4 more products
    Red Hat Enterprise Linux ES version 3 fetchmail 6.2.0-3.el3.5 Red Hat Enterprise Linux ES version 4 fetchmail 6.2.5-6.0.1.el4_8.1 Red Hat Enterprise Linux WS version 3 fetchmail 6.2.0-3.el3.5 Red Hat Enterprise Linux WS version 4 fetchmail 6.2.5-6.0.1.el4_8.1
    fixed: vendor fix RHSA-2009:1427

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

1.97% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/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.