Read the docs
TI-2005-00404 Aliases CVE-2005-0446GHSA-2f87-jcwj-5f4g

Squid 2.5.STABLE8 and earlier allows remote attackers to cause a denial of service…

Priority MEDIUM 51Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

Squid 2.5.STABLE8 and earlier allows remote attackers to cause a denial of service (crash) via certain DNS responses regarding (1) Fully Qualified Domain Names (FQDN) in fqdncache.c or (2) IP addresses in ipcache.c, which trigger an assertion failure.

Why it matters now

EPSS 0.41109 98th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 59

CPEVersionsRoleVendor
cpe:2.3:a:squid:squid:2.0.patch1:*:*:*:*:*:*:*2.0.patch1VulnerableSquid
cpe:2.3:a:squid:squid:2.0.patch2:*:*:*:*:*:*:*2.0.patch2VulnerableSquid
cpe:2.3:a:squid:squid:2.0.pre1:*:*:*:*:*:*:*2.0.pre1VulnerableSquid
cpe:2.3:a:squid:squid:2.0.release:*:*:*:*:*:*:*2.0.releaseVulnerableSquid
cpe:2.3:a:squid:squid:2.0_patch2:*:*:*:*:*:*:*2.0_patch2VulnerableSquid
cpe:2.3:a:squid:squid:2.1.patch1:*:*:*:*:*:*:*2.1.patch1VulnerableSquid
cpe:2.3:a:squid:squid:2.1.patch2:*:*:*:*:*:*:*2.1.patch2VulnerableSquid
cpe:2.3:a:squid:squid:2.1.pre1:*:*:*:*:*:*:*2.1.pre1VulnerableSquid
cpe:2.3:a:squid:squid:2.1.pre3:*:*:*:*:*:*:*2.1.pre3VulnerableSquid
cpe:2.3:a:squid:squid:2.1.pre4:*:*:*:*:*:*:*2.1.pre4VulnerableSquid
  • cpe:2.3:a:squid:squid:2.0.patch1:*:*:*:*:*:*:* Versions 2.0.patch1 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.0.patch2:*:*:*:*:*:*:* Versions 2.0.patch2 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.0.pre1:*:*:*:*:*:*:* Versions 2.0.pre1 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.0.release:*:*:*:*:*:*:* Versions 2.0.release Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.0_patch2:*:*:*:*:*:*:* Versions 2.0_patch2 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.1.patch1:*:*:*:*:*:*:* Versions 2.1.patch1 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.1.patch2:*:*:*:*:*:*:* Versions 2.1.patch2 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.1.pre1:*:*:*:*:*:*:* Versions 2.1.pre1 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.1.pre3:*:*:*:*:*:*:* Versions 2.1.pre3 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.1.pre4:*:*:*:*:*:*:* Versions 2.1.pre4 Vulnerable ·Squid
Show 49 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:squid:squid:2.1.release:*:*:*:*:*:*:*2.1.releaseVulnerableSquid
cpe:2.3:a:squid:squid:2.1_patch2:*:*:*:*:*:*:*2.1_patch2VulnerableSquid
cpe:2.3:a:squid:squid:2.2.devel3:*:*:*:*:*:*:*2.2.devel3VulnerableSquid
cpe:2.3:a:squid:squid:2.2.devel4:*:*:*:*:*:*:*2.2.devel4VulnerableSquid
cpe:2.3:a:squid:squid:2.2.pre1:*:*:*:*:*:*:*2.2.pre1VulnerableSquid
cpe:2.3:a:squid:squid:2.2.pre2:*:*:*:*:*:*:*2.2.pre2VulnerableSquid
cpe:2.3:a:squid:squid:2.2.stable1:*:*:*:*:*:*:*2.2.stable1VulnerableSquid
cpe:2.3:a:squid:squid:2.2.stable2:*:*:*:*:*:*:*2.2.stable2VulnerableSquid
cpe:2.3:a:squid:squid:2.2.stable3:*:*:*:*:*:*:*2.2.stable3VulnerableSquid
cpe:2.3:a:squid:squid:2.2.stable4:*:*:*:*:*:*:*2.2.stable4VulnerableSquid
cpe:2.3:a:squid:squid:2.2.stable5:*:*:*:*:*:*:*2.2.stable5VulnerableSquid
cpe:2.3:a:squid:squid:2.3.devel2:*:*:*:*:*:*:*2.3.devel2VulnerableSquid
cpe:2.3:a:squid:squid:2.3.devel3:*:*:*:*:*:*:*2.3.devel3VulnerableSquid
cpe:2.3:a:squid:squid:2.3.stable1:*:*:*:*:*:*:*2.3.stable1VulnerableSquid
cpe:2.3:a:squid:squid:2.3.stable2:*:*:*:*:*:*:*2.3.stable2VulnerableSquid
cpe:2.3:a:squid:squid:2.3.stable3:*:*:*:*:*:*:*2.3.stable3VulnerableSquid
cpe:2.3:a:squid:squid:2.3.stable4:*:*:*:*:*:*:*2.3.stable4VulnerableSquid
cpe:2.3:a:squid:squid:2.3.stable5:*:*:*:*:*:*:*2.3.stable5VulnerableSquid
cpe:2.3:a:squid:squid:2.3_.stable4:*:*:*:*:*:*:*2.3_.stable4VulnerableSquid
cpe:2.3:a:squid:squid:2.3_.stable5:*:*:*:*:*:*:*2.3_.stable5VulnerableSquid
cpe:2.3:a:squid:squid:2.3_stable5:*:*:*:*:*:*:*2.3_stable5VulnerableSquid
cpe:2.3:a:squid:squid:2.4:*:*:*:*:*:*:*2.4VulnerableSquid
cpe:2.3:a:squid:squid:2.4.stable1:*:*:*:*:*:*:*2.4.stable1VulnerableSquid
cpe:2.3:a:squid:squid:2.4.stable2:*:*:*:*:*:*:*2.4.stable2VulnerableSquid
cpe:2.3:a:squid:squid:2.4.stable3:*:*:*:*:*:*:*2.4.stable3VulnerableSquid
cpe:2.3:a:squid:squid:2.4.stable4:*:*:*:*:*:*:*2.4.stable4VulnerableSquid
cpe:2.3:a:squid:squid:2.4.stable6:*:*:*:*:*:*:*2.4.stable6VulnerableSquid
cpe:2.3:a:squid:squid:2.4.stable7:*:*:*:*:*:*:*2.4.stable7VulnerableSquid
cpe:2.3:a:squid:squid:2.4_.stable2:*:*:*:*:*:*:*2.4_.stable2VulnerableSquid
cpe:2.3:a:squid:squid:2.4_.stable6:*:*:*:*:*:*:*2.4_.stable6VulnerableSquid
cpe:2.3:a:squid:squid:2.4_.stable7:*:*:*:*:*:*:*2.4_.stable7VulnerableSquid
cpe:2.3:a:squid:squid:2.4_stable7:*:*:*:*:*:*:*2.4_stable7VulnerableSquid
cpe:2.3:a:squid:squid:2.5.6:*:*:*:*:*:*:*2.5.6VulnerableSquid
cpe:2.3:a:squid:squid:2.5.stable1:*:*:*:*:*:*:*2.5.stable1VulnerableSquid
cpe:2.3:a:squid:squid:2.5.stable2:*:*:*:*:*:*:*2.5.stable2VulnerableSquid
cpe:2.3:a:squid:squid:2.5.stable3:*:*:*:*:*:*:*2.5.stable3VulnerableSquid
cpe:2.3:a:squid:squid:2.5.stable4:*:*:*:*:*:*:*2.5.stable4VulnerableSquid
cpe:2.3:a:squid:squid:2.5.stable5:*:*:*:*:*:*:*2.5.stable5VulnerableSquid
cpe:2.3:a:squid:squid:2.5.stable6:*:*:*:*:*:*:*2.5.stable6VulnerableSquid
cpe:2.3:a:squid:squid:2.5.stable7:*:*:*:*:*:*:*2.5.stable7VulnerableSquid
cpe:2.3:a:squid:squid:2.5.stable8:*:*:*:*:*:*:*2.5.stable8VulnerableSquid
cpe:2.3:a:squid:squid:2.5_.stable1:*:*:*:*:*:*:*2.5_.stable1VulnerableSquid
cpe:2.3:a:squid:squid:2.5_.stable3:*:*:*:*:*:*:*2.5_.stable3VulnerableSquid
cpe:2.3:a:squid:squid:2.5_.stable4:*:*:*:*:*:*:*2.5_.stable4VulnerableSquid
cpe:2.3:a:squid:squid:2.5_.stable5:*:*:*:*:*:*:*2.5_.stable5VulnerableSquid
cpe:2.3:a:squid:squid:2.5_.stable6:*:*:*:*:*:*:*2.5_.stable6VulnerableSquid
cpe:2.3:a:squid:squid:2.5_stable3:*:*:*:*:*:*:*2.5_stable3VulnerableSquid
cpe:2.3:a:squid:squid:2.5_stable4:*:*:*:*:*:*:*2.5_stable4VulnerableSquid
cpe:2.3:a:squid:squid:2.5_stable9:*:*:*:*:*:*:*2.5_stable9VulnerableSquid
  • cpe:2.3:a:squid:squid:2.1.release:*:*:*:*:*:*:* Versions 2.1.release Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.1_patch2:*:*:*:*:*:*:* Versions 2.1_patch2 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.2.devel3:*:*:*:*:*:*:* Versions 2.2.devel3 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.2.devel4:*:*:*:*:*:*:* Versions 2.2.devel4 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.2.pre1:*:*:*:*:*:*:* Versions 2.2.pre1 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.2.pre2:*:*:*:*:*:*:* Versions 2.2.pre2 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.2.stable1:*:*:*:*:*:*:* Versions 2.2.stable1 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.2.stable2:*:*:*:*:*:*:* Versions 2.2.stable2 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.2.stable3:*:*:*:*:*:*:* Versions 2.2.stable3 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.2.stable4:*:*:*:*:*:*:* Versions 2.2.stable4 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.2.stable5:*:*:*:*:*:*:* Versions 2.2.stable5 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.3.devel2:*:*:*:*:*:*:* Versions 2.3.devel2 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.3.devel3:*:*:*:*:*:*:* Versions 2.3.devel3 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.3.stable1:*:*:*:*:*:*:* Versions 2.3.stable1 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.3.stable2:*:*:*:*:*:*:* Versions 2.3.stable2 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.3.stable3:*:*:*:*:*:*:* Versions 2.3.stable3 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.3.stable4:*:*:*:*:*:*:* Versions 2.3.stable4 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.3.stable5:*:*:*:*:*:*:* Versions 2.3.stable5 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.3_.stable4:*:*:*:*:*:*:* Versions 2.3_.stable4 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.3_.stable5:*:*:*:*:*:*:* Versions 2.3_.stable5 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.3_stable5:*:*:*:*:*:*:* Versions 2.3_stable5 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.4:*:*:*:*:*:*:* Versions 2.4 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.4.stable1:*:*:*:*:*:*:* Versions 2.4.stable1 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.4.stable2:*:*:*:*:*:*:* Versions 2.4.stable2 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.4.stable3:*:*:*:*:*:*:* Versions 2.4.stable3 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.4.stable4:*:*:*:*:*:*:* Versions 2.4.stable4 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.4.stable6:*:*:*:*:*:*:* Versions 2.4.stable6 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.4.stable7:*:*:*:*:*:*:* Versions 2.4.stable7 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.4_.stable2:*:*:*:*:*:*:* Versions 2.4_.stable2 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.4_.stable6:*:*:*:*:*:*:* Versions 2.4_.stable6 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.4_.stable7:*:*:*:*:*:*:* Versions 2.4_.stable7 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.4_stable7:*:*:*:*:*:*:* Versions 2.4_stable7 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5.6:*:*:*:*:*:*:* Versions 2.5.6 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5.stable1:*:*:*:*:*:*:* Versions 2.5.stable1 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5.stable2:*:*:*:*:*:*:* Versions 2.5.stable2 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5.stable3:*:*:*:*:*:*:* Versions 2.5.stable3 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5.stable4:*:*:*:*:*:*:* Versions 2.5.stable4 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5.stable5:*:*:*:*:*:*:* Versions 2.5.stable5 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5.stable6:*:*:*:*:*:*:* Versions 2.5.stable6 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5.stable7:*:*:*:*:*:*:* Versions 2.5.stable7 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5.stable8:*:*:*:*:*:*:* Versions 2.5.stable8 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5_.stable1:*:*:*:*:*:*:* Versions 2.5_.stable1 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5_.stable3:*:*:*:*:*:*:* Versions 2.5_.stable3 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5_.stable4:*:*:*:*:*:*:* Versions 2.5_.stable4 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5_.stable5:*:*:*:*:*:*:* Versions 2.5_.stable5 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5_.stable6:*:*:*:*:*:*:* Versions 2.5_.stable6 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5_stable3:*:*:*:*:*:*:* Versions 2.5_stable3 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5_stable4:*:*:*:*:*:*:* Versions 2.5_stable4 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5_stable9:*:*:*:*:*:*:* Versions 2.5_stable9 Vulnerable ·Squid

Remediation

Red Hat 2 advisories

  • RHSA-2005:201 Released 2005-03-16 · Red Hat rating Moderate
    squid security update
    • Red Hat Enterprise Linux AS version 4 squid-7:2.5.STABLE6-3.4E.5, squid-7:2.5.STABLE6-3.4E.5.i386, squid-7:2.5.STABLE6-3.4E.5.ia64 +1
    • Red Hat Enterprise Linux Desktop version 4 squid-7:2.5.STABLE6-3.4E.5, squid-7:2.5.STABLE6-3.4E.5.i386
    • Red Hat Enterprise Linux ES version 4 squid-7:2.5.STABLE6-3.4E.5, squid-7:2.5.STABLE6-3.4E.5.i386, squid-7:2.5.STABLE6-3.4E.5.ia64
    • Red Hat Enterprise Linux WS version 4 squid-7:2.5.STABLE6-3.4E.5, squid-7:2.5.STABLE6-3.4E.5.i386, squid-7:2.5.STABLE6-3.4E.5.ia64
  • RHSA-2005:173 Released 2005-03-03 · Red Hat rating Moderate
    squid security update
    • Red Hat Desktop version 3 squid-7:2.5.STABLE3-6.3E.8, squid-7:2.5.STABLE3-6.3E.8.i386
    • Red Hat Enterprise Linux AS version 3 squid-7:2.5.STABLE3-6.3E.8, squid-7:2.5.STABLE3-6.3E.8.i386, squid-7:2.5.STABLE3-6.3E.8.ia64 +1
    • Red Hat Enterprise Linux ES version 3 squid-7:2.5.STABLE3-6.3E.8, squid-7:2.5.STABLE3-6.3E.8.i386, squid-7:2.5.STABLE3-6.3E.8.ia64
    • Red Hat Enterprise Linux WS version 3 squid-7:2.5.STABLE3-6.3E.8, squid-7:2.5.STABLE3-6.3E.8.i386, squid-7:2.5.STABLE3-6.3E.8.ia64

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Desktop version 3Fixed RHSA-2005:173
Red Hat Enterprise Linux AS version 3Fixed RHSA-2005:173
Red Hat Enterprise Linux AS version 4Fixed RHSA-2005:201
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2005:201
Red Hat Enterprise Linux ES version 3Fixed RHSA-2005:173
Red Hat Enterprise Linux ES version 4Fixed RHSA-2005:201
Red Hat Enterprise Linux WS version 3Fixed RHSA-2005:173
Red Hat Enterprise Linux WS version 4Fixed RHSA-2005:201

Timeline

  1. 2026-10-02 Threatist record created from CVE-2005-0446
  2. 2026-10-03 Alias added: GHSA-2f87-jcwj-5f4g

References

Patch 6

Advisory 3

Other 2

  • TI-2009-00458 Squid 2.7 to 2.7.STABLE5, 3.0 to 3.0.STABLE12, and 3.1 to 3.1.0.4 allows remote attackers… CVSS 2.0MEDIUM 5.0
  • TI-2005-00207 The httpProcessReplyHeader function in http.c for Squid 2.5-STABLE7 and earlier does not… CVSS 2.0MEDIUM 5.0
  • TI-2005-00080 The WCCP message parsing code in Squid 2.5.STABLE7 and earlier allows remote attackers to… CVSS 2.0MEDIUM 5.0
  • TI-2005-00142 squid_ldap_auth in Squid 2.5 and earlier allows remote authenticated users to bypass… CVSS 2.0HIGH 7.5
  • TI-2005-00143 Squid 2.5 up to 2.5.STABLE7 allows remote attackers to poison the cache or conduct… CVSS 2.0MEDIUM 5.0
  • TI-2005-00162 Squid 2.5, when processing the configuration file, parses empty Access Control Lists… CVSS 2.0HIGH 10.0
See all 36 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences