CVE-2019-19330 Other in n/a

Critical 9.8 Published Updated

HAProxy mishandles HTTP/2 headers, allowing intermediary encapsulation attacks that bypass security controls.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2019-19330?

CVE-2019-19330 is a critical vulnerability in Canonical Ubuntu Linux, published on 27 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The HTTP/2 implementation in HAProxy before 2.0.10 mishandles headers, as demonstrated by carriage return (CR, ASCII 0xd), line feed (LF, ASCII 0xa), and the zero character (NUL, ASCII 0x0), aka Intermediary Encapsulation Attacks.

Weakness: CWE-74

Which versions are affected by CVE-2019-19330?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Haproxy Haproxy.

How do I fix CVE-2019-19330?

Upgrade to a fixed version.

Is CVE-2019-19330 being exploited?

There is no known exploitation of CVE-2019-19330 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as ALPINE-CVE-2019-19330, DEBIAN-CVE-2019-19330, DSA-4577-1, GHSA-x4px-pm9c-vmjm, UBUNTU-CVE-2019-19330, USN-4212-1.

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