high
8.8
CWE
787
Advisory Published
CVE Published
CVE Published
Updated

CVE-2020-11100

First published: Tue Mar 31 2020(Updated: )

A flaw was found in the way haproxy processed certain HTTP/2 request packets. An attacker could send crafted HTTP/2 request packets which cause memory corruption, leading to a crash or potential remote arbitrary code execution with the permissions of the user running haproxy.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Haproxy Haproxy>=1.8.0<2.1.4
Debian Debian Linux=10.0
Redhat Openshift Container Platform=3.11
Redhat Openshift Container Platform=4.0
Fedoraproject Fedora=30
Fedoraproject Fedora=31
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.10
openSUSE Leap=15.1
redhat/haproxy<2.1.4
2.1.4
ubuntu/haproxy<1.8.8-1ubuntu0.10
1.8.8-1ubuntu0.10
ubuntu/haproxy<2.0.5-1ubuntu0.4
2.0.5-1ubuntu0.4
ubuntu/haproxy<2.0.14
2.0.14
debian/haproxy
2.2.9-2+deb11u6
2.6.12-1+deb12u1
2.9.9-1

Remedy

https://git.haproxy.org/?p=haproxy.git;a=commit;h=5dfc5d5cd0d2128d77253ead3acf03a421ab5b88

Remedy

https://github.com/haproxy/haproxy/commit/5dfc5d5cd0d2128d77253ead3acf03a421ab5b88

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID for this issue?

    The vulnerability ID for this issue is CVE-2020-11100.

  • What is the severity of CVE-2020-11100?

    The severity of CVE-2020-11100 is high with a severity value of 8.8.

  • What software versions are affected by CVE-2020-11100?

    The versions affected by CVE-2020-11100 include HAProxy 1.8 through 2.x before 2.1.4.

  • How can a remote attacker exploit CVE-2020-11100?

    A remote attacker can exploit CVE-2020-11100 by sending a crafted HTTP/2 request, which can allow them to write arbitrary bytes around a certain location on the heap, possibly leading to remote code execution.

  • Are there any remediation steps available for CVE-2020-11100?

    Yes, there are remediation steps available for CVE-2020-11100. Please refer to the official references for more information on how to mitigate this vulnerability.

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