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Fencer Vulns
medium 5.0

CVE-2004-0918 json

The asn_parse_header function (asn1.c) in the SNMP module for Squid Web Proxy Cache before 2.4.STABLE7 allows remote attackers to cause a d…

published 2004-10-21 22 y ago modified 2026-06-16 4 mo ago also EUVD-2004-0916

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
15.8%
EPSS 15.8% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

The asn_parse_header function (asn1.c) in the SNMP module for Squid Web Proxy Cache before 2.4.STABLE7 allows remote attackers to cause a denial of service (server restart) via certain SNMP packets with negative length fields that trigger a memory allocation error.

Patch / fix

  • squid Debian 14, Debian 13, Debian 12 2.5.7

debian advisories DEBIAN-CVE-2004-0918

  • squid RHEL 3 7:2.5.STABLE3-6.3E.2

red hat advisories RHSA-2004:591

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-2004-0918 updated

Squid SNMP DoS

  • Red Hat Desktop version 3 squid 2.5.STABLE3-6.3E.2 Red Hat Enterprise Linux AS version 3 squid 2.5.STABLE3-6.3E.2 Red Hat Enterprise Linux ES version 3 squid 2.5.STABLE3-6.3E.2 Red Hat Enterprise Linux WS version 3 squid 2.5.STABLE3-6.3E.2
    fixed: vendor fix RHSA-2004:591

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

15.83% chance of exploitation in the next 30 days, higher than 96% 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

Classification

Weakness
  • CWE-399 Resource Management Errors

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Fix old broken CPEs.