Squid is a web proxy cache. Starting in version 3.5.27 and prior to version 6.8, Squid may be vulnerable to a Denial of Service attack against HTTP Chunked decoder due to an uncontrolled recursion bug. This problem allows a remote attacker to cause Denial of Service when sending a crafted, chunked, encoded HTTP Message. This bug is fixed in Squid version 6.8. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. There is no workaround for this issue.
CVSS Details
- CVSS 3.1 Base Score: 8.6
- 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 | — | Upgrade libecapUpgrade libecap-develUpgrade squid | Apr 15, 2024 | Mar 6, 2024 |
| Amazon_linux_2023 | — | Upgrade squidUpgrade squid-debugsourceUpgrade squid-debuginfo | Feb 17, 2025 | Mar 6, 2024 |
| Debian | — | Upgrade squid | Jul 30, 2024 | Mar 6, 2024 |
| Oracle_linux | — | Upgrade libecap-develUpgrade libecapUpgrade squid | Mar 21, 2024 | Mar 6, 2024 |
| Redhat_linux | — | Upgrade squidUpgrade libecap-develUpgrade libecap-debugsourceUpgrade libecapUpgrade squid-debugsourceUpgrade squid-debuginfoUpgrade libecap-debuginfo | Mar 27, 2024 | Mar 6, 2024 |
| Rocky_linux | — | Upgrade libecap-debugsourceUpgrade libecap-develUpgrade libecapUpgrade libecap-debuginfo | May 8, 2025 | Mar 6, 2024 |
| Suse | — | Upgrade squid | Apr 5, 2024 | Mar 6, 2024 |
| Ubuntu | — | Upgrade squid | Apr 11, 2024 | Mar 6, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Mar 6, 2024 |
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