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AUSCERT External Security Bulletin Redistribution
ESB-2020.3419
USN-4562-1: kramdown vulnerability
1 October 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: kramdown
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Read-only Data Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-14001
Reference: ESB-2020.2749
ESB-2020.2740
ESB-2020.2731
Original Bulletin:
https://usn.ubuntu.com/4562-1/
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USN-4562-1: kramdown vulnerability
30 September 2020
kramdown could be made to crash, run programs, or leak sensitive information if
it opened a specially crafted file.
Releases
o Ubuntu 20.04 LTS
Packages
o 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
o kramdown - 1.17.0-4ubuntu0.1
o ruby-kramdown - 1.17.0-4ubuntu0.1
In general, a standard system update will make all the necessary changes.
References
o CVE-2020-14001
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