Heap-based buffer overflow in Squid before 2.4 STABLE4, and Squid 2.5 and 2.6 until March…
Priority MEDIUM 49Published · 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 · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
Heap-based buffer overflow in Squid before 2.4 STABLE4, and Squid 2.5 and 2.6 until March 12, 2002 distributions, allows remote attackers to cause a denial of service, and possibly execute arbitrary code, via compressed DNS responses.
Why it matters now
EPSS 0.15054 96th 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
Remediation
Red Hat 1 advisory
- RHSA-2002:051 Released 2002-07-04 · Red Hat rating Important: : : New Squid packages available
- Red Hat Linux 6.2
- Red Hat Linux 7.0
- Red Hat Linux 7.1
- Red Hat Linux 7.2
- Red Hat Linux 7.3
Vendor assessments
Red Hat
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Linux 6.2 | Fixed | RHSA-2002:051 |
| Red Hat Linux 7.0 | Fixed | RHSA-2002:051 |
| Red Hat Linux 7.1 | Fixed | RHSA-2002:051 |
| Red Hat Linux 7.2 | Fixed | RHSA-2002:051 |
| Red Hat Linux 7.3 | Fixed | RHSA-2002:051 |
Timeline
- 2026-10-02 Threatist record created from CVE-2002-0163
- 2026-10-03 Alias added: GHSA-wq2p-p836-86h4
References
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-2005-00207 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
Sources
- CVE-2002-0163 · CVE Program
- CVE-2002-0163 · NVD
- FIRST EPSS
- GHSA-wq2p-p836-86h4 · GitHub Advisory Database · CC BY 4.0
- CVE-2002-0163 · 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