An issue was discovered in Squid 3.x and 4.x through 4.8. Due to incorrect input validation, there is a heap-based buffer overflow that can result in Denial of Service to all clients using the proxy. Severity is high due to this vulnerability occurring before normal security checks; any remote client that can reach the proxy port can trivially perform the attack via a crafted URI scheme.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/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 |
|---|---|---|---|---|
| Alma_linux | alma-upgrade-libecapalma-upgrade-libecap-devel | May 4, 2022 | Nov 26, 2019 | |
| Alpine Linux | — | alpine-linux-upgrade-squid | Jan 19, 2021 | Nov 26, 2019 |
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-squidamazon-linux-ami-2-upgrade-squid-debuginfoamazon-linux-ami-2-upgrade-squid-migration-scriptamazon-linux-ami-2-upgrade-squid-sysvinit | Jun 6, 2023 | Nov 26, 2019 | |
| Amazon_linux | — | amazon-linux-upgrade-squid | Jun 7, 2023 | Nov 14, 2019 |
| Centos_linux | — | centos-upgrade-libecapcentos-upgrade-libecap-debuginfocentos-upgrade-libecap-debugsourcecentos-upgrade-libecap-develcentos-upgrade-squidcentos-upgrade-squid-debuginfocentos-upgrade-squid-debugsource | Nov 5, 2020 | Nov 26, 2019 |
| Debian | debian-upgrade-squid | May 11, 2020 | Nov 26, 2019 | |
| Huawei Euleros 2_0_sp3 | huawei-euleros-2_0_sp3-upgrade-squidhuawei-euleros-2_0_sp3-upgrade-squid-migration-script | Apr 30, 2021 | Nov 26, 2019 | |
| Huawei Euleros 2_0_sp5 | huawei-euleros-2_0_sp5-upgrade-squid | Feb 24, 2020 | Nov 26, 2019 | |
| Huawei Euleros 2_0_sp8 | huawei-euleros-2_0_sp8-upgrade-squid | Jan 3, 2020 | Nov 26, 2019 | |
| Oracle Solaris | oracle-solaris-11-4-upgrade-web-proxy-squid-4-10-11-4-21-0-1-69-0 | Jan 19, 2021 | Nov 26, 2019 | |
| Oracle_linux | — | oracle-linux-upgrade-libecaporacle-linux-upgrade-libecap-develoracle-linux-upgrade-squid | Jul 22, 2024 | Nov 5, 2019 |
| Redhat_linux | no-fix-redhat-rpm-packageredhat-upgrade-libecapredhat-upgrade-libecap-debuginforedhat-upgrade-libecap-debugsourceredhat-upgrade-libecap-develredhat-upgrade-squidredhat-upgrade-squid-debuginforedhat-upgrade-squid-debugsource | Nov 5, 2020 | Nov 26, 2019 | |
| Rocky_linux | rocky-upgrade-libecaprocky-upgrade-libecap-debuginforocky-upgrade-libecap-debugsourcerocky-upgrade-libecap-devel | Mar 12, 2024 | Nov 26, 2019 | |
| Suse | — | suse-upgrade-squidsuse-upgrade-squid3 | Nov 22, 2019 | Nov 14, 2019 |
| Ubuntu | ubuntu-upgrade-squid | Dec 5, 2019 | Nov 14, 2019 |
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