USN-3685-2: Ruby regression
Publication date
25 March 2021
Overview
USN-3685-1 introduced a regression in Ruby.
Releases
Packages
- ruby2.0 - Object-oriented scripting language
Details
USN-3685-1 fixed a vulnerability in Ruby. The fix for CVE-2017-0903 introduced
a regression in Ruby. This update fixes the problem.
Original advisory details:
Some of these CVE were already addressed in previous
USN: 3439-1, 3553-1, 3528-1. Here we address for
the remain releases.
It was discovered that Ruby incorrectly handled certain inputs.
An attacker could use this to cause a buffer overrun. (CVE-2017-0898)
It was discovered that Ruby incorrectly handled certain files.
An attacker could use this to overwrite any file on the filesystem.
(CVE-2017-0901)
It was discovered that Ruby was vulnerable to a DNS hijacking vulnerability.
An attacker could use this to possibly force the RubyGems client to download
and install gems from a server that the attacker controls. (
USN-3685-1 fixed a vulnerability in Ruby. The fix for CVE-2017-0903 introduced
a regression in Ruby. This update fixes the problem.
Original advisory details:
Some of these CVE were already addressed in previous
USN: 3439-1, 3553-1, 3528-1. Here we address for
the remain releases.
It was discovered that Ruby incorrectly handled certain inputs.
An attacker could use this to cause a buffer overrun. (CVE-2017-0898)
It was discovered that Ruby incorrectly handled certain files.
An attacker could use this to overwrite any file on the filesystem.
(CVE-2017-0901)
It was discovered that Ruby was vulnerable to a DNS hijacking vulnerability.
An attacker could use this to possibly force the RubyGems client to download
and install gems from a server that the attacker controls. (CVE-2017-0902)
It was discovered that Ruby incorrectly handled certain YAML files.
An attacker could use this to possibly execute arbitrary code. (CVE-2017-0903)
It was discovered that Ruby incorrectly handled certain files.
An attacker could use this to expose sensitive information.
(CVE-2017-14064)
It was discovered that Ruby incorrectly handled certain inputs.
An attacker could use this to execute arbitrary code. (CVE-2017-10784)
It was discovered that Ruby incorrectly handled certain network requests.
An attacker could possibly use this to inject a crafted key into a HTTP
response. (CVE-2017-17742)
It was discovered that Ruby incorrectly handled certain files.
An attacker could possibly use this to execute arbitrary code.
This update is only addressed to ruby2.0. (CVE-2018-1000074)
It was discovered that Ruby incorrectly handled certain network requests.
An attacker could possibly use this to cause a denial of service.
(CVE-2018-8777)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 14.04 trusty | libruby2.0 – 2.0.0.484-1ubuntu2.13+esm1 | ||
| ruby2.0 – 2.0.0.484-1ubuntu2.13+esm1 | |||
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