Debian Security Advisory DSA-4960-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
August 17, 2021 https://www.debian.org/security/faq
Package : haproxy
CVE ID : not yet assigned
Several vulnerabilities were discovered in HAProxy, a fast and reliable
load balancing reverse proxy, which can result in HTTP request
smuggling. By carefully crafting HTTP/2 requests, it is possible to
smuggle another HTTP request to the backend selected by the HTTP/2
request. With certain configurations, it allows an attacker to send an
HTTP request to a backend, circumventing the backend selection logic.
Known workarounds are to disable HTTP/2 and set
"tune.h2.max-concurrent-streams" to 0 in the "global" section.
global
tune.h2.max-concurrent-streams 0
For the stable distribution (bullseye), these problems have been fixed in
version 2.2.9-2+deb11u1.
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/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: [email protected]
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 11 | armel | haproxy | < 2.2.9-2+deb11u1 | haproxy_2.2.9-2+deb11u1_armel.deb |
Debian | 11 | armel | haproxy-dbgsym | < 2.2.9-2+deb11u1 | haproxy-dbgsym_2.2.9-2+deb11u1_armel.deb |
Debian | 11 | s390x | haproxy-dbgsym | < 2.2.9-2+deb11u1 | haproxy-dbgsym_2.2.9-2+deb11u1_s390x.deb |
Debian | 11 | mips64el | haproxy | < 2.2.9-2+deb11u1 | haproxy_2.2.9-2+deb11u1_mips64el.deb |
Debian | 11 | arm64 | haproxy-dbgsym | < 2.2.9-2+deb11u1 | haproxy-dbgsym_2.2.9-2+deb11u1_arm64.deb |
Debian | 11 | mipsel | haproxy | < 2.2.9-2+deb11u1 | haproxy_2.2.9-2+deb11u1_mipsel.deb |
Debian | 11 | s390x | haproxy | < 2.2.9-2+deb11u1 | haproxy_2.2.9-2+deb11u1_s390x.deb |
Debian | 11 | all | haproxy-doc | < 2.2.9-2+deb11u1 | haproxy-doc_2.2.9-2+deb11u1_all.deb |
Debian | 11 | mipsel | haproxy-dbgsym | < 2.2.9-2+deb11u1 | haproxy-dbgsym_2.2.9-2+deb11u1_mipsel.deb |
Debian | 11 | armhf | haproxy | < 2.2.9-2+deb11u1 | haproxy_2.2.9-2+deb11u1_armhf.deb |