VDB

ALPINE-CVE-2018-1000027

ALPINE-CVE-2018-1000027 PUBLISHED CVSS 7.5 HIGH

The Squid Software Foundation Squid HTTP Caching Proxy version prior to version 4.0.23 contains a NULL Pointer Dereference vulnerability in HTTP Response X-Forwarded-For header processing that can result in Denial of Service to all clients of the proxy. This attack appear to be exploitable via Remote HTTP server responding with an X-Forwarded-For header to certain types of HTTP request. This vulnerability appears to have been fixed in 4.0.23 and later.

Risk Scores

CVSS 3.0
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
Alpine:v3.19squid0, 0, 2.7.6-r0
Alpine:v3.11squid3.2.6-r1, 3.2.7-r1, 3.2.7-r2
Alpine:v3.20squid3.2.6-r0, 3.2.2-r0, 3.2.4-r0
Alpine:v3.10squid2.7.6-r9, 3.5.17-r1, 3.5.17-r0
Alpine:v3.7squid3.3.11-r0, 3.2.0.12-r1, 3.4.8-r0
Alpine:v3.24squid0, 0, 0
Alpine:v3.16squid3.5.8-r0, 3.2.7-r1, 3.2.7-r2
Alpine:v3.18squid2.7.7-r0, 3.2.0.17-r0, 3.2.0.16-r0
Alpine:v3.23squid3.2.0.17-r2, 3.2.0.17-r1, 3.2.0.17-r0
Alpine:v3.5squid3.3.8-r1, 0, 0
Alpine:v3.21squid2.7.6-r6, 2.7.6-r9, 2.7.7-r0
Alpine:v3.8squid2.7.9-r0, 3.3.3-r0, 3.3.4-r0
Alpine:v3.4squid3.3.3-r0, 3.3.2-r0, 3.3.11-r1
Alpine:v3.6squid3.5.20-r0, 0, 2.7.6-r0
Alpine:v3.12squid0, 0, 2.7.6-r1
Alpine:v3.22squid3.5.23-r2, 0, 0
Alpine:v3.13squid0, 0, 0
Alpine:v3.14squid2.7.6-r11, 0, 0
Alpine:v3.9squid0, 0, 2.7.6-r0
Alpine:v3.17squid3.5.15-r1, 0, 2.7.6-r0

…and 1 more

Timeline

  • Feb 9, 2018 CVE Published
  • Jun 9, 2026 CVE Updated
  • Aug 8, 2026 Distribution Patch
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