CVE-2024-28182

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.

References

https://www.cisa.gov/news-events/ics-advisories/icsa-24-228-06

https://nowotarski.info/http2-continuation-flood/

https://kb.cert.org/vuls/id/421644

https://lists.fedoraproject.org/archives/list/[email protected]/message/PXJO2EASHM2OQQLGVDY5ZSO7UVDVHTDK/

https://lists.fedoraproject.org/archives/list/[email protected]/message/J6ZMXUGB66VAXDW5J6QSTHM5ET25FGSA/

https://lists.fedoraproject.org/archives/list/[email protected]/message/AGOME6ZXJG7664IPQNVE3DL67E3YP3HY/

https://lists.debian.org/debian-lts-announce/2024/04/msg00026.html

https://github.com/nghttp2/nghttp2/security/advisories/GHSA-x6x3-gv8h-m57q

https://github.com/nghttp2/nghttp2/commit/d71a4668c6bead55805d18810d633fbb98315af9

https://github.com/nghttp2/nghttp2/commit/00201ecd8f982da3b67d4f6868af72a1b03b14e0

http://www.openwall.com/lists/oss-security/2024/04/03/16

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3