VDB
ALPINE-CVE-2023-49288
ALPINE-CVE-2023-49288
PUBLISHED
CVSS 7.5 HIGH
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Affected versions of squid are subject to a a Use-After-Free bug which can lead to a Denial of Service attack via collapsed forwarding. All versions of Squid from 3.5 up to and including 5.9 configured with "collapsed_forwarding on" are vulnerable. Configurations with "collapsed_forwarding off" or without a "collapsed_forwarding" directive are not vulnerable. This bug is fixed by Squid version 6.0.1. Users are advised to upgrade. Users unable to upgrade should remove all collapsed_forwarding lines from their squid.conf.
Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.19 | squid | 0, 2.7.6-r1, 2.7.6-r10 |
| Alpine:v3.22 | squid | 5.9-r1, 0, 2.7.6-r0 |
| Alpine:v3.20 | squid | 5.9-r1, 5.9-r0, 5.7-r1 |
| Alpine:v3.21 | squid | 3.2.7-r2, 2.7.6-r1, 2.7.6-r10 |
| Alpine:v3.23 | squid | 5.9-r1, 5.9-r0, 5.7-r1 |
Timeline
- Dec 4, 2023 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch