ruby2.3, ruby2.5 vulnerabilities
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
Several security issues were fixed in Ruby.
Software Description
* ruby2.5 - Interpreter of object-oriented scripting language
Ruby
* ruby2.3 - Object-oriented scripting language
Details
It was discovered that Ruby incorrectly handled certain files. An
attacker could possibly use this issue to pass path matching what
can lead to an unauthorized access. (CVE-2019-15845)
It was discovered that Ruby incorrectly handled certain regular
expressions. An attacker could use this issue to cause a denial of
service. (CVE-2019-16201)
It was discovered that Ruby incorrectly handled certain HTTP
headers. An attacker could possibly use this issue to execute
arbitrary code. (CVE-2019-16254)
It was discovered that Ruby incorrectly handled certain inputs. An
attacker could possibly use this issue to execute arbitrary code.
(CVE-2019-16255)
Update instructions
The problem can be corrected by updating your system to the
following package versions:
Ubuntu 19.10
libruby2.5 - 2.5.5-4ubuntu2.1
ruby2.5 - 2.5.5-4ubuntu2.1
Ubuntu 19.04
libruby2.5 - 2.5.5-1ubuntu1.1
ruby2.5 - 2.5.5-1ubuntu1.1
Ubuntu 18.04 LTS
libruby2.5 - 2.5.1-1ubuntu1.6
ruby2.5 - 2.5.1-1ubuntu1.6
Ubuntu 16.04 LTS
libruby2.3 - 2.3.1-2~ubuntu16.04.14
ruby2.3 - 2.3.1-2~ubuntu16.04.14
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary
changes.
References
* CVE-2019-15845
* CVE-2019-16201
* CVE-2019-16254
* CVE-2019-16255
--- Mystic BBS v1.12 A43 (Linux/64)
* Origin: BZ&BZ BBS (21:4/110)