Read the docs
TI-2005-02756 Aliases CVE-2005-2917GHSA-5hg5-x4p6-wgf5

Squid 2.5.STABLE10 and earlier, while performing NTLM authentication, does not properly…

Priority LOW 29Published · 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.STABLE10 and earlier, while performing NTLM authentication, does not properly handle certain request sequences, which allows attackers to cause a denial of service (daemon restart).

Why it matters now

EPSS 0.03404 88th 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 · 2

CPEVersionsRoleVendor
cpe:2.3:a:squid:squid:*:*:*:*:*:*:*:*up to 2.5.stable10VulnerableSquid
cpe:2.3:a:squid:squid:2.5.9:*:*:*:*:*:*:*2.5.9VulnerableSquid
  • cpe:2.3:a:squid:squid:*:*:*:*:*:*:*:* Versions up to 2.5.stable10 Vulnerable ·Squid
  • cpe:2.3:a:squid:squid:2.5.9:*:*:*:*:*:*:* Versions 2.5.9 Vulnerable ·Squid

Remediation

Red Hat 2 advisories

  • RHSA-2006:0045 Released 2006-03-15 · Red Hat rating Moderate
    squid security update
    • Red Hat Desktop version 3 squid-7:2.5.STABLE3-6.3E.16, squid-7:2.5.STABLE3-6.3E.16.i386
    • Red Hat Enterprise Linux AS version 3 squid-7:2.5.STABLE3-6.3E.16, squid-7:2.5.STABLE3-6.3E.16.i386, squid-7:2.5.STABLE3-6.3E.16.ia64 +1
    • Red Hat Enterprise Linux ES version 3 squid-7:2.5.STABLE3-6.3E.16, squid-7:2.5.STABLE3-6.3E.16.i386, squid-7:2.5.STABLE3-6.3E.16.ia64
    • Red Hat Enterprise Linux WS version 3 squid-7:2.5.STABLE3-6.3E.16, squid-7:2.5.STABLE3-6.3E.16.i386, squid-7:2.5.STABLE3-6.3E.16.ia64
  • RHSA-2006:0052 Released 2006-03-07 · Red Hat rating Moderate
    squid security update
    • Red Hat Enterprise Linux AS version 4 squid-7:2.5.STABLE6-3.4E.12, squid-7:2.5.STABLE6-3.4E.12.i386, squid-7:2.5.STABLE6-3.4E.12.ia64 +1
    • Red Hat Enterprise Linux Desktop version 4 squid-7:2.5.STABLE6-3.4E.12, squid-7:2.5.STABLE6-3.4E.12.i386
    • Red Hat Enterprise Linux ES version 4 squid-7:2.5.STABLE6-3.4E.12, squid-7:2.5.STABLE6-3.4E.12.i386, squid-7:2.5.STABLE6-3.4E.12.ia64
    • Red Hat Enterprise Linux WS version 4 squid-7:2.5.STABLE6-3.4E.12, squid-7:2.5.STABLE6-3.4E.12.i386, squid-7:2.5.STABLE6-3.4E.12.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-2006:0045
Red Hat Enterprise Linux AS version 3Fixed RHSA-2006:0045
Red Hat Enterprise Linux AS version 4Fixed RHSA-2006:0052
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2006:0052
Red Hat Enterprise Linux ES version 3Fixed RHSA-2006:0045
Red Hat Enterprise Linux ES version 4Fixed RHSA-2006:0052
Red Hat Enterprise Linux WS version 3Fixed RHSA-2006:0045
Red Hat Enterprise Linux WS version 4Fixed RHSA-2006:0052

Timeline

  1. 2026-10-02 Threatist record created from CVE-2005-2917
  2. 2026-10-03 Alias added: GHSA-5hg5-x4p6-wgf5

References

Patch 1

Advisory 6

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-2005-00404 Squid 2.5.STABLE8 and earlier allows remote attackers to cause a denial of service… CVSS 2.0MEDIUM 5.0
See all 36 →

Sources

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