USN-4740-1: Apache Shiro vulnerabilities
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Ubuntu Security Notice USN-4740-1
February 18, 2021
shiro vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
Summary:
Apache Shiro could be made to crash if it received specially crafted
input.
Software Description:
- shiro: Powerful and easy-to-use Java security framework
Details:
It was discovered that Apache Shiro mishandled specially crafted requests. An
attacker could use this vulnerability to bypass authentication mechanisms.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS:
libshiro-java 1.3.2-4ubuntu0.1
Ubuntu 18.04 LTS:
libshiro-java 1.3.2-3~18.04.1
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4740-1
CVE-2020-11989, CVE-2020-1957
Package Information:
https://launchpad.net/ubuntu/+source/shiro/1.3.2-4ubuntu0.1
https://launchpad.net/ubuntu/+source/shiro/1.3.2-3~18.04.1
An Apache Shiro security update has been released for Ubuntu Linux 18.04 LTS and 20.04 LTS.