Vulnerability · Published Mar 6, 2024 · Assigned by GitHub_M
CVE-2024-25111SQUID-2024:1 Denial of Service in HTTP Chunked Decoding
High 8.6
In plain English
A high-severity security flaw in squid from squid-cache. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 65.3% (higher than 99.3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | libecap | 1.0.1-2.module_el8.6.0+2741+01592ae8 | ALSA-2024:1375 |
| AlmaLinux:8 | libecap | 1.0.1-2.module_el8.6.0+3048+383bc947 | ALSA-2024:1375 |
| AlmaLinux:8 | libecap-devel | 1.0.1-2.module_el8.6.0+2741+01592ae8 | ALSA-2024:1375 |
| AlmaLinux:8 | libecap-devel | 1.0.1-2.module_el8.6.0+3048+383bc947 | ALSA-2024:1375 |
| AlmaLinux:8 | squid | 7:4.15-7.module_el8.9.0+3749+dbf371ed.10 | ALSA-2024:1375 |
| AlmaLinux:9 | squid | 7:5.5-6.el9_3.8 | ALSA-2024:1376 |
| Debian:12 | squid | 5.7-2+deb12u1 | DEBIAN-CVE-2024-25111 |
| Debian:13 | squid | 6.8-1 | DEBIAN-CVE-2024-25111 |
| Debian:14 | squid | 6.8-1 | DEBIAN-CVE-2024-25111 |
| Rocky Linux:8 | libecap | 0:1.0.1-2.module+el8.9.0+1437+df5ea8f0 | RLSA-2024:1375 |
| Ubuntu:22.04:LTS | squid | 5.7-0ubuntu0.22.04.4 | USN-6728-1 |
| Ubuntu:22.04:LTS | squid | 5.7-0ubuntu0.22.04.4 | UBUNTU-CVE-2024-25111 |
| Ubuntu:24.04:LTS | squid | 6.6-1ubuntu4 | UBUNTU-CVE-2024-25111 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| squid-cache | squid | >= 3.5.27, < 6.8 |
Weakness: CWE-674 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
References
- https://github.com/squid-cache/squid/security/advisories/GHSA-72c2-c3wm-8qxc x_refsource_CONFIRM
- http://www.squid-cache.org/Versions/v6/SQUID-2024_1.patch x_refsource_MISC
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7R4KPSO3MQT3KAOZV7LC2GG3CYMCGK7H/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XWQHRDRHDM5PQTU6BHH4C5KGL37X6TVI/
- https://security.netapp.com/advisory/ntap-20240605-0001/
- https://lists.debian.org/debian-lts-announce/2025/03/msg00009.html