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Debian LTS DLA-3621-1: nghttp2 Update Critical DoS Threats

debian lts
Calendar Grey October 16, 2023
Dist Debian Esm H88
This report outlines the recent security flaws identified in nghttp2, highlighting potential denial-of-service threats.
Multiple vulnerabilities were discovered in nghttp2, an implementation of the HTTP/2 protocol
Topics%20covered

Topics Covered

security advisory Debian Denial of Service nghttp2 HTTP/2

Summary

CVE-2020-11080

A denial-of-service could be caused by a large HTTP/2 SETTINGS
frame payload.

CVE-2023-44487

A denial-of-service could be caused by resetting many HTTP/2
streams quickly. This has been observed in the wild since August.

For Debian 10 buster, these problems have been fixed in version
1.36.0-2+deb10u2.

We recommend that you upgrade your nghttp2 packages.

For the detailed security status of nghttp2 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/nghttp2

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS


Severity
critical
Lowest
Low
Medium
High
Critical

Package: nghttp2
Version: 1.36.0-2+deb10u2
CVE ID: CVE-2020-11080 CVE-2023-44487
Debian Bug: 962145 1053769

Topics%20covered

Topics Covered

security advisory Debian Denial of Service nghttp2 HTTP/2

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