A libapreq2 security update has been released for Ubuntu Linux 18.04 LTS.

USN-4558-1: libapreq2 vulnerabilities

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Ubuntu Security Notice USN-4558-1
September 30, 2020

libapreq2 vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS

Summary:

libapreq2 could be made to crash if it received specially crafted network
traffic.

Software Description:
- libapreq2: a safe, standards-compliant, high-performance library used for
parsing HTTP cookies, query-strings and POST data

Details:

It was discovered that libapreq2 did not properly sanitize the Content-Type
field in certain, crafted HTTP requests. An attacker could use this
vulnerability to cause libapreq2 to crash.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS:
libapache2-mod-apreq2 2.13-7~deb10u1build0.18.04.1
libapache2-request-perl 2.13-7~deb10u1build0.18.04.1
libapreq2-3 2.13-7~deb10u1build0.18.04.1
libapreq2-dev 2.13-7~deb10u1build0.18.04.1

In general, a standard system update will make all the necessary changes.

References:
  https://usn.ubuntu.com/4558-1
CVE-2019-12412

Package Information:
  https://launchpad.net/ubuntu/+source/libapreq2/2.13-7~deb10u1build0.18.04.1