CVE-2024-24549
Apache Tomcat Denial of Service due to improper input validation vulnerability for HTTP/2 requests
Description
Denial of Service due to improper input validation vulnerability for HTTP/2 requests in Apache Tomcat. When processing an HTTP/2 request, if the request exceeded any of the configured limits for headers, the associated HTTP/2 stream was not reset until after all of the headers had been processed.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.
How to fix CVE-2024-24549
To remediate CVE-2024-24549, upgrade the affected package to a fixed version below.
- —upgrade to 8.5.99 or later
- —upgrade to 10.1.6-1+deb12u2 or later
- —upgrade to 9.0.43-2~deb11u10 or later
- —upgrade to 8.5.99 or later
- —upgrade to 11.0.0-M17 or later
Is CVE-2024-24549 being exploited?
Likely — EPSS is 64.4%, placing CVE-2024-24549 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (5)
- >= 8.5.0, < 8.5.99, >= 9.0.0, < 9.0.86, >= 10.0.0, < 10.1.19
- from 0, < 10.1.6-1+deb12u2
- from 0, < 9.0.43-2~deb11u10
- >= 8.5.0, < 8.5.99
- >= 11.0.0-M1, < 11.0.0-M17
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |