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Debian Security Advisory DSA-4649-1                   security@debian.org
https://www.debian.org/security/                       Sebastien Delafond
April 02, 2020                        https://www.debian.org/security/faq
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Package        : haproxy
CVE ID         : CVE-2020-11100

Felix Wilhelm of Google Project Zero discovered that HAProxy, a TCP/HTTP
reverse proxy, did not properly handle HTTP/2 headers. This would allow
an attacker to write arbitrary bytes around a certain location on the
heap, resulting in denial-of-service or potential arbitrary code
execution.

For the stable distribution (buster), this problem has been fixed in
version 1.8.19-1+deb10u2.

We recommend that you upgrade your haproxy packages.

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

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

Mailing list: debian-security-announce@lists.debian.org

Debian: DSA-4649-1: haproxy security update

April 2, 2020
Felix Wilhelm of Google Project Zero discovered that HAProxy, a TCP/HTTP reverse proxy, did not properly handle HTTP/2 headers

Summary

For the stable distribution (buster), this problem has been fixed in
version 1.8.19-1+deb10u2.

We recommend that you upgrade your haproxy packages.

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

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

Mailing list: debian-security-announce@lists.debian.org

Severity
Felix Wilhelm of Google Project Zero discovered that HAProxy, a TCP/HTTP
reverse proxy, did not properly handle HTTP/2 headers. This would allow
an attacker to write arbitrary bytes around a certain location on the
heap, resulting in denial-of-service or potential arbitrary code
execution.

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