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AUSCERT External Security Bulletin Redistribution
ESB-2019.3816
USN-4151-2: Python vulnerabilities
14 October 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: Python
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Cross-site Scripting -- Remote with User Interaction
Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-16935 CVE-2019-16056
Reference: ESB-2019.3786
ESB-2019.3520
Original Bulletin:
https://usn.ubuntu.com/4151-2/
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USN-4151-2: Python vulnerabilities
10 October 2019
python2.7, python3.4 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 14.04 ESM
o Ubuntu 12.04 ESM
Summary
Several security issues were fixed in Python.
Software Description
o python2.7 - An interactive high-level object-oriented language
o python3.4 - An interactive high-level object-oriented language
Details
USN-4151-1 fixed several vulnerabilities in Python. This update provides the
corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
Original advisory details:
It was discovered that Python incorrectly parsed certain email addresses. A
remote attacker could possibly use this issue to trick Python applications into
accepting email addresses that should be denied. (CVE-2019-16056)
It was discovered that the Python documentation XML-RPC server incorrectly
handled certain fields. A remote attacker could use this issue to execute a
cross-site scripting (XSS) attack. (CVE-2019-16935)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 14.04 ESM
python2.7 - 2.7.6-8ubuntu0.6+esm3
python2.7-minimal - 2.7.6-8ubuntu0.6+esm3
python3.4 - 3.4.3-1ubuntu1~14.04.7+esm4
python3.4-minimal - 3.4.3-1ubuntu1~14.04.7+esm4
Ubuntu 12.04 ESM
python2.7 - 2.7.3-0ubuntu3.15
python2.7-minimal - 2.7.3-0ubuntu3.15
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
o USN-4151-1
o CVE-2019-16056
o CVE-2019-16935
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