The httpProcessReplyHeader function in http.c for Squid 2.5-STABLE7 and earlier does not…
Priority MEDIUM 60Published · 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 · Partial · None
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The httpProcessReplyHeader function in http.c for Squid 2.5-STABLE7 and earlier does not properly set the debug context when it is handling "oversized" HTTP reply headers, which might allow remote attackers to poison the cache or bypass access controls based on header size.
Why it matters now
EPSS 0.69661 99th 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
| 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:squid:squid:2.5.stable1:*:*:*:*:*:*:* | 2.5.stable1 | Vulnerable | Squid |
| cpe:2.3:a:squid:squid:2.5.stable2:*:*:*:*:*:*:* | 2.5.stable2 | Vulnerable | Squid |
| cpe:2.3:a:squid:squid:2.5.stable3:*:*:*:*:*:*:* | 2.5.stable3 | Vulnerable | Squid |
| cpe:2.3:a:squid:squid:2.5.stable4:*:*:*:*:*:*:* | 2.5.stable4 | Vulnerable | Squid |
| cpe:2.3:a:squid:squid:2.5.stable5:*:*:*:*:*:*:* | 2.5.stable5 | Vulnerable | Squid |
| cpe:2.3:a:squid:squid:2.5.stable6:*:*:*:*:*:*:* | 2.5.stable6 | Vulnerable | Squid |
| cpe:2.3:a:squid:squid:2.5.stable7:*:*:*:*:*:*:* | 2.5.stable7 | 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
Remediation
Red Hat 2 advisories
- RHSA-2005:060 Released 2005-02-15 · Red Hat rating Importantsquid security update
- Red Hat Enterprise Linux AS version 4 squid-7:2.5.STABLE6-3.4E.3, squid-7:2.5.STABLE6-3.4E.3.i386, squid-7:2.5.STABLE6-3.4E.3.ia64 +1
- Red Hat Enterprise Linux Desktop version 4 squid-7:2.5.STABLE6-3.4E.3, squid-7:2.5.STABLE6-3.4E.3.i386
- Red Hat Enterprise Linux ES version 4 squid-7:2.5.STABLE6-3.4E.3, squid-7:2.5.STABLE6-3.4E.3.i386, squid-7:2.5.STABLE6-3.4E.3.ia64
- Red Hat Enterprise Linux WS version 4 squid-7:2.5.STABLE6-3.4E.3, squid-7:2.5.STABLE6-3.4E.3.i386, squid-7:2.5.STABLE6-3.4E.3.ia64
- RHSA-2005:061 Released 2005-02-11 · Red Hat rating Importantsquid security update
- Red Hat Desktop version 3 squid-7:2.5.STABLE3-6.3E.7, squid-7:2.5.STABLE3-6.3E.7.i386
- Red Hat Enterprise Linux AS version 3 squid-7:2.5.STABLE3-6.3E.7, squid-7:2.5.STABLE3-6.3E.7.i386, squid-7:2.5.STABLE3-6.3E.7.ia64 +1
- Red Hat Enterprise Linux ES version 3 squid-7:2.5.STABLE3-6.3E.7, squid-7:2.5.STABLE3-6.3E.7.i386, squid-7:2.5.STABLE3-6.3E.7.ia64
- Red Hat Enterprise Linux WS version 3 squid-7:2.5.STABLE3-6.3E.7, squid-7:2.5.STABLE3-6.3E.7.i386, squid-7:2.5.STABLE3-6.3E.7.ia64
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Desktop version 3 | Fixed | RHSA-2005:061 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2005:061 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2005:060 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2005:060 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2005:061 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2005:060 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2005:061 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2005:060 |
Timeline
- 2026-10-02 Threatist record created from CVE-2005-0241
- 2026-10-03 Alias added: GHSA-7q73-vrf9-vhjw
References
Patch 8
Advisory 1
More Squid vulnerabilities
- 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-2005-00080 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
- TI-2005-00162 Squid 2.5, when processing the configuration file, parses empty Access Control Lists… CVSS 2.0HIGH 10.0
Sources
- CVE-2005-0241 · CVE Program
- CVE-2005-0241 · NVD
- FIRST EPSS
- GHSA-7q73-vrf9-vhjw · GitHub Advisory Database · CC BY 4.0
- CVE-2005-0241 · 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