Squid Web Proxy Cache 2.5 might allow remote attackers to obtain sensitive information…
Priority LOW 27Published · 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
- Partial · None · None
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
Squid Web Proxy Cache 2.5 might allow remote attackers to obtain sensitive information via URLs containing invalid hostnames that cause DNS operations to fail, which results in references to previously used error messages.
Why it matters now
EPSS 0.02081 81st percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:national_science_foundation:squid_web_proxy_cache:2.5_stable1:*:*:*:*:*:*:* | 2.5_stable1 | Vulnerable | National Science Foundation |
| cpe:2.3:a:national_science_foundation:squid_web_proxy_cache:2.5_stable2:*:*:*:*:*:*:* | 2.5_stable2 | Vulnerable | National Science Foundation |
| cpe:2.3:a:national_science_foundation:squid_web_proxy_cache:2.5_stable3:*:*:*:*:*:*:* | 2.5_stable3 | Vulnerable | National Science Foundation |
| cpe:2.3:a:national_science_foundation:squid_web_proxy_cache:2.5_stable4:*:*:*:*:*:*:* | 2.5_stable4 | Vulnerable | National Science Foundation |
| cpe:2.3:a:national_science_foundation:squid_web_proxy_cache:2.5_stable5:*:*:*:*:*:*:* | 2.5_stable5 | Vulnerable | National Science Foundation |
| cpe:2.3:a:national_science_foundation:squid_web_proxy_cache:2.5_stable6:*:*:*:*:*:*:* | 2.5_stable6 | Vulnerable | National Science Foundation |
| cpe:2.3:a:national_science_foundation:squid_web_proxy_cache:2.5_stable7:*:*:*:*:*:*:* | 2.5_stable7 | Vulnerable | National Science Foundation |
- cpe:2.3:a:national_science_foundation:squid_web_proxy_cache:2.5_stable1:*:*:*:*:*:*:* Versions 2.5_stable1 Vulnerable ·National Science Foundation
- cpe:2.3:a:national_science_foundation:squid_web_proxy_cache:2.5_stable2:*:*:*:*:*:*:* Versions 2.5_stable2 Vulnerable ·National Science Foundation
- cpe:2.3:a:national_science_foundation:squid_web_proxy_cache:2.5_stable3:*:*:*:*:*:*:* Versions 2.5_stable3 Vulnerable ·National Science Foundation
- cpe:2.3:a:national_science_foundation:squid_web_proxy_cache:2.5_stable4:*:*:*:*:*:*:* Versions 2.5_stable4 Vulnerable ·National Science Foundation
- cpe:2.3:a:national_science_foundation:squid_web_proxy_cache:2.5_stable5:*:*:*:*:*:*:* Versions 2.5_stable5 Vulnerable ·National Science Foundation
- cpe:2.3:a:national_science_foundation:squid_web_proxy_cache:2.5_stable6:*:*:*:*:*:*:* Versions 2.5_stable6 Vulnerable ·National Science Foundation
- cpe:2.3:a:national_science_foundation:squid_web_proxy_cache:2.5_stable7:*:*:*:*:*:*:* Versions 2.5_stable7 Vulnerable ·National Science Foundation
Remediation
Red Hat 1 advisory
- RHSA-2005:766 Released 2005-09-15 · Red Hat rating Importantsquid security update
- Red Hat Desktop version 3 squid-7:2.5.STABLE3-6.3E.14, squid-7:2.5.STABLE3-6.3E.14.i386
- Red Hat Enterprise Linux AS version 3 squid-7:2.5.STABLE3-6.3E.14, squid-7:2.5.STABLE3-6.3E.14.i386, squid-7:2.5.STABLE3-6.3E.14.ia64 +1
- Red Hat Enterprise Linux AS version 4 squid-7:2.5.STABLE6-3.4E.11, squid-7:2.5.STABLE6-3.4E.11.i386, squid-7:2.5.STABLE6-3.4E.11.ia64 +1
- Red Hat Enterprise Linux Desktop version 4 squid-7:2.5.STABLE6-3.4E.11, squid-7:2.5.STABLE6-3.4E.11.i386
- Red Hat Enterprise Linux ES version 3 squid-7:2.5.STABLE3-6.3E.14, squid-7:2.5.STABLE3-6.3E.14.i386, squid-7:2.5.STABLE3-6.3E.14.ia64
- Red Hat Enterprise Linux ES version 4 squid-7:2.5.STABLE6-3.4E.11, squid-7:2.5.STABLE6-3.4E.11.i386, squid-7:2.5.STABLE6-3.4E.11.ia64
- Red Hat Enterprise Linux WS version 3 squid-7:2.5.STABLE3-6.3E.14, squid-7:2.5.STABLE3-6.3E.14.i386, squid-7:2.5.STABLE3-6.3E.14.ia64
- Red Hat Enterprise Linux WS version 4 squid-7:2.5.STABLE6-3.4E.11, squid-7:2.5.STABLE6-3.4E.11.i386, squid-7:2.5.STABLE6-3.4E.11.ia64
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Desktop version 3 | Fixed | RHSA-2005:766 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2005:766 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2005:766 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2005:766 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2005:766 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2005:766 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2005:766 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2005:766 |
Timeline
- 2026-10-02 Threatist record created from CVE-2004-2479
- 2026-10-03 Alias added: GHSA-wf7x-gjvh-m5r3
References
More National Science Foundation Squid Web Proxy Cache vulnerabilities
- TI-2004-00488 Buffer overflow in the ntlm_check_auth (NTLM authentication) function for Squid Web Proxy… CVSS 2.0HIGH 10.0
- TI-2004-02350 Squid Web Proxy Cache 2.3.STABLE5 allows remote attackers to bypass security controls and… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2004-2479 · CVE Program
- CVE-2004-2479 · NVD
- FIRST EPSS
- GHSA-wf7x-gjvh-m5r3 · GitHub Advisory Database · CC BY 4.0
- CVE-2004-2479 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences