CVE-2024-25111 SQUID-2024:1 Denial of Service in HTTP Chunked Decoding
Remote attackers can cause a denial of service in Squid web proxy by sending crafted chunked HTTP messages due to uncontrolled recursion.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-25111?
CVE-2024-25111 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 6 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-674
Which versions are affected by CVE-2024-25111?
It affects 3 products.
Linux distribution packages (17)
libecap Red Hat:rhel_eus:8.6::appstream | All versions | 0:1.0.1-2.module+el8.1.0+4044+36416a77 |
libecap-debuginfo Red Hat:rhel_eus:8.6::appstream | All versions | 0:1.0.1-2.module+el8.1.0+4044+36416a77 |
libecap-debugsource Red Hat:rhel_eus:8.6::appstream | All versions | 0:1.0.1-2.module+el8.1.0+4044+36416a77 |
libecap-devel Red Hat:rhel_eus:8.6::appstream | All versions | 0:1.0.1-2.module+el8.1.0+4044+36416a77 |
squid Red Hat:rhel_eus:8.6::appstream | All versions | 7:4.15-3.module+el8.6.0+21519+58cab4c1.6 |
squid-debuginfo Red Hat:rhel_eus:8.6::appstream | All versions | 7:4.15-3.module+el8.6.0+21519+58cab4c1.6 |
squid-debugsource Red Hat:rhel_eus:8.6::appstream | All versions | 7:4.15-3.module+el8.6.0+21519+58cab4c1.6 |
libecap Red Hat:rhel_eus:8.8::appstream | All versions | 0:1.0.1-2.module+el8.1.0+4044+36416a77 |
libecap-debuginfo Red Hat:rhel_eus:8.8::appstream | All versions | 0:1.0.1-2.module+el8.1.0+4044+36416a77 |
libecap-debugsource Red Hat:rhel_eus:8.8::appstream | All versions | 0:1.0.1-2.module+el8.1.0+4044+36416a77 |
libecap-devel Red Hat:rhel_eus:8.8::appstream | All versions | 0:1.0.1-2.module+el8.1.0+4044+36416a77 |
squid Red Hat:rhel_eus:8.8::appstream | All versions | 7:4.15-6.module+el8.8.0+21509+962c493b.6 |
squid-debuginfo Red Hat:rhel_eus:8.8::appstream | All versions | 7:4.15-6.module+el8.8.0+21509+962c493b.6 |
squid-debugsource Red Hat:rhel_eus:8.8::appstream | All versions | 7:4.15-6.module+el8.8.0+21509+962c493b.6 |
squid Red Hat:rhel_eus:9.2::appstream | All versions | 7:5.5-5.el9_2.6 |
squid-debuginfo Red Hat:rhel_eus:9.2::appstream | All versions | 7:5.5-5.el9_2.6 |
squid-debugsource Red Hat:rhel_eus:9.2::appstream | All versions | 7:5.5-5.el9_2.6 |
Products include Fedoraproject Fedora, Netapp Bluexp, Squid-Cache Squid.
How do I fix CVE-2024-25111?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-25111 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-25111 exists.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as AZL-42511, CLSA-2024-1712261257, CLSA-2024-1712490592, CLSA-2025-1738693764, DEBIAN-CVE-2024-25111, GHSA-72c2-c3wm-8qxc and 9 more.