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.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade squid | Mar 6, 2018 | Feb 9, 2018 |
| Amazon_linux | — | Upgrade squid | Sep 20, 2018 | Feb 9, 2018 |
| Centos_linux | — | Upgrade squid-migration-scriptUpgrade squid-sysvinitUpgrade squidUpgrade squid-debuginfo | Apr 1, 2020 | Feb 9, 2018 |
| Debian | — | Upgrade squidUpgrade squid3 | Feb 24, 2018 | Feb 9, 2018 |
| Freebsd | — | Upgrade squidUpgrade squid-devel | Feb 24, 2018 | Feb 23, 2018 |
| Huawei Euleros 2_0_sp1 | — | Upgrade squid-migration-scriptUpgrade squid | May 2, 2018 | Feb 9, 2018 |
| Huawei Euleros 2_0_sp2 | — | Upgrade squidUpgrade squid-migration-script | May 2, 2018 | Feb 9, 2018 |
| Oracle Solaris | — | Upgrade entire/ to version 11.4-11.4.0.0.1.15.0 on Solaris 11.4 | Oct 19, 2018 | Feb 9, 2018 |
| Oracle_linux | — | Upgrade squid-sysvinitUpgrade squid-migration-scriptUpgrade squid | Oct 5, 2022 | Jan 19, 2018 |
| Redhat_linux | — | Upgrade squidUpgrade squid-sysvinitNo solution existsUpgrade squid-migration-scriptUpgrade squid-debuginfo | Apr 1, 2020 | Feb 9, 2018 |
| Suse | — | Upgrade squid3Upgrade squid | Mar 10, 2018 | Feb 9, 2018 |
| Ubuntu | — | Upgrade squid3 | Apr 25, 2018 | Feb 9, 2018 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub