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HAproxy would allow unintended access if ii received specially crafted HTTP request.
==========================================================================
Ubuntu Security Notice USN-4174-1
November 05, 2019
haproxy vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 19.10
- Ubuntu 19.04
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
Summary:
HAproxy would allow unintended access if ii received specially crafted
HTTP request.
Software Description:
- haproxy: fast and reliable load balancing reverse proxy
Details:
It was discovered that HAproxy incorrectly handled certain HTTP requests.
An attacker could possibly use this issue to a privilege escalation
(Request Smuggling).
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 19.10:
haproxy 2.0.5-1ubuntu0.2
Ubuntu 19.04:
haproxy 1.8.19-1ubuntu1.2
Ubuntu 18.04 LTS:
haproxy 1.8.8-1ubuntu0.7
Ubuntu 16.04 LTS:
haproxy 1.6.3-1ubuntu0.3
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4174-1
CVE-2019-18277
Package Information:
https://launchpad.net/ubuntu/+source/haproxy/2.0.5-1ubuntu0.2
https://launchpad.net/ubuntu/+source/haproxy/1.8.19-1ubuntu1.2
https://launchpad.net/ubuntu/+source/haproxy/1.8.8-1ubuntu0.7
https://launchpad.net/ubuntu/+source/haproxy/1.6.3-1ubuntu0.3
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