Ubuntu Security Notice 3995-1 - It was discovered that Keepalived incorrectly handled certain HTTP status response codes. A remote attacker could use this issue to cause Keepalived to crash, resulting in a denial of service, or possibly execute arbitrary code.
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Ubuntu Security Notice USN-3995-1
May 28, 2019
keepalived vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
Summary:
Keepalived could be made to crash or run programs if it received
specially crafted network traffic.
Software Description:
- keepalived: Failover and monitoring daemon for LVS clusters
Details:
It was discovered that Keepalived incorrectly handled certain HTTP status
response codes. A remote attacker could use this issue to cause Keepalived
to crash, resulting in a denial of service, or possibly execute arbitrary
code.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.10:
keepalived 1:1.3.9-1ubuntu1.1
Ubuntu 18.04 LTS:
keepalived 1:1.3.9-1ubuntu0.18.04.2
Ubuntu 16.04 LTS:
keepalived 1:1.2.24-1ubuntu0.16.04.2
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3995-1
CVE-2018-19115
Package Information:
https://launchpad.net/ubuntu/+source/keepalived/1:1.3.9-1ubuntu1.1
https://launchpad.net/ubuntu/+source/keepalived/1:1.3.9-1ubuntu0.18.04.2
https://launchpad.net/ubuntu/+source/keepalived/1:1.2.24-1ubuntu0.16.04.2