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Ubuntu Security Notice USN-4562-1
September 30, 2020
ruby-kramdown vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 20.04 LTS
Summary:
kramdown could be made to crash, run programs, or leak sensitive information if
it opened a specially crafted file.
Software Description:
– ruby-kramdown: Fast, pure-Ruby Markdown-superset converter – ruby library
Details:
It was discovered that kramdown insecurely handled certain crafted input.
An attacker could use this vulnerability to read restricted files or
execute arbitrary code.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS:
kramdown 1.17.0-4ubuntu0.1
ruby-kramdown 1.17.0-4ubuntu0.1
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4562-1
CVE-2020-14001
Package Information:
https://launchpad.net/ubuntu/+source/ruby-kramdown/1.17.0-4ubuntu0.1
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