Vulnerability Details : CVE-2024-28182
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.
Products affected by CVE-2024-28182
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Exploit prediction scoring system (EPSS) score for CVE-2024-28182
26.01%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 96 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2024-28182
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
3.9
|
1.4
|
GitHub, Inc. | 2024-04-04 |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
N/A
|
N/A
|
RedHat-CVE-2024-28182 | 2024-04-03 |
CWE ids for CVE-2024-28182
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The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.Assigned by: security-advisories@github.com (Secondary)
References for CVE-2024-28182
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http://www.openwall.com/lists/oss-security/2024/04/03/16
oss-security - CERT/CC VU#421644: HTTP/2 CONTINUATION frames can be utilized for DoS attacks
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXJO2EASHM2OQQLGVDY5ZSO7UVDVHTDK/
[SECURITY] Fedora 38 Update: nghttp2-1.52.0-3.fc38 - package-announce - Fedora Mailing-Lists
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J6ZMXUGB66VAXDW5J6QSTHM5ET25FGSA/
[SECURITY] Fedora 39 Update: nghttp2-1.55.1-5.fc39 - package-announce - Fedora Mailing-Lists
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https://github.com/nghttp2/nghttp2/commit/00201ecd8f982da3b67d4f6868af72a1b03b14e0
Limit CONTINUATION frames following an incoming HEADER frame · nghttp2/nghttp2@00201ec · GitHub
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https://github.com/nghttp2/nghttp2/security/advisories/GHSA-x6x3-gv8h-m57q
Reading unbounded number of HTTP/2 CONTINUATION frames to cause excessive CPU usage · Advisory · nghttp2/nghttp2 · GitHub
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https://lists.debian.org/debian-lts-announce/2024/04/msg00026.html
[SECURITY] [DLA 3804-1] nghttp2 security update
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AGOME6ZXJG7664IPQNVE3DL67E3YP3HY/
[SECURITY] Fedora 40 Update: nghttp2-1.59.0-3.fc40 - package-announce - Fedora Mailing-Lists
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https://github.com/nghttp2/nghttp2/commit/d71a4668c6bead55805d18810d633fbb98315af9
Add nghttp2_option_set_max_continuations · nghttp2/nghttp2@d71a466 · GitHub
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