An issue was discovered in Squid 3.x and 4.x through 4.8. It allows attackers to smuggle HTTP requests through frontend software to a Squid instance that splits the HTTP Request pipeline differently. The resulting Response messages corrupt caches (between a client and Squid) with attacker-controlled content at arbitrary URLs. Effects are isolated to software between the attacker client and Squid. There are no effects on Squid itself, nor on any upstream servers. The issue is related to a request header containing whitespace between a header name and a colon.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-2028-1 squid3 security update
Debian DLA Debian DLA DLA-2278-1 squid3 security update
Debian DSA Debian DSA DSA-4682-1 squid security update
EUVD EUVD EUVD-2019-8394 An issue was discovered in Squid 3.x and 4.x through 4.8. It allows attackers to smuggle HTTP requests through frontend software to a Squid instance that splits the HTTP Request pipeline differently. The resulting Response messages corrupt caches (between a client and Squid) with attacker-controlled content at arbitrary URLs. Effects are isolated to software between the attacker client and Squid. There are no effects on Squid itself, nor on any upstream servers. The issue is related to a request header containing whitespace between a header name and a colon.
Ubuntu USN Ubuntu USN USN-4213-1 Squid vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T02:02:38.289Z

Reserved: 2019-11-04T00:00:00

Link: CVE-2019-18678

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-11-26T17:15:12.983

Modified: 2024-11-21T04:33:30.973

Link: CVE-2019-18678

cve-icon Redhat

Severity : Moderate

Publid Date: 2019-11-05T00:00:00Z

Links: CVE-2019-18678 - Bugzilla

cve-icon OpenCVE Enrichment

No data.