Improper resource allocation In nghttp2
Description
nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. The nghttp2 library prior to version 1.61.0 keeps reading the unbounded number of HTTP/2 CONTINUATION frames even after a stream is reset to keep HPACK context in sync. This causes excessive CPU usage to decode HPACK stream. nghttp2 v1.61.0 mitigates this vulnerability by limiting the number of CONTINUATION frames it accepts per stream. There is no workaround for this vulnerability.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Package | Affected version | Patched versions |
|---|---|---|---|
 debian 12 | 1.52.0-1+deb12u2 | ||
debian 11 | 1.43.0-1+deb11u2 | ||
debian 13 | 1.61.0-1 | ||
debian 14 | 1.61.0-1 | ||
 rpm rhel8.8 | 1:18.19.1-3.module+el8.8.0+22005+6f8bb252 | ||
rpm rhel9 | 1:16.20.2-8.el9_4 | ||
rpm rhel9.2 | 1:16.20.2-5.el9_2.3 | ||
rpm rhel8 | 0:1.33.0-6.el8_10.1 | ||
rpm rhel8 | - | - | |
rpm rhel8.8 | 0:1.33.0-5.el8_8.1 |
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Aliases
1. 2. 3. 4. 5.