USN-4151-1: Python vulnerabilities

Releases

• Ubuntu 19.04
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• python2.7 - An interactive high-level object-oriented language
• python3.5 - An interactive high-level object-oriented language
• python3.6 - An interactive high-level object-oriented language
• python3.7 - An interactive high-level object-oriented language

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 19.04

• python2.7 - 2.7.16-2ubuntu0.2
• python2.7-minimal - 2.7.16-2ubuntu0.2
• python3.7 - 3.7.3-2ubuntu0.2
• python3.7-minimal - 3.7.3-2ubuntu0.2

Ubuntu 18.04

• python2.7 - 2.7.15-4ubuntu4~18.04.2
• python2.7-minimal - 2.7.15-4ubuntu4~18.04.2
• python3.6 - 3.6.8-1~18.04.3
• python3.6-minimal - 3.6.8-1~18.04.3

Ubuntu 16.04

• python2.7 - 2.7.12-1ubuntu0~16.04.9
• python2.7-minimal - 2.7.12-1ubuntu0~16.04.9
• python3.5 - 3.5.2-2ubuntu0~16.04.9
• python3.5-minimal - 3.5.2-2ubuntu0~16.04.9

In general, a standard system update will make all the necessary changes.

References

• CVE-2019-16056
• CVE-2019-16935

Related notices

• USN-4151-2: libpython3.4-testsuite, libpython2.7-testsuite, python3.4, python3.4-venv, libpython3.4-dev, idle-python2.7, python2.7-examples, idle-python3.4, python3.4-doc, python2.7, python2.7-doc, libpython3.4-stdlib, python3.4-examples, python3.4-dev, python2.7-dev, libpython2.7-minimal, libpython3.4, python2.7-minimal, libpython3.4-minimal, libpython2.7, libpython2.7-stdlib, python3.4-minimal, libpython2.7-dev
• USN-6891-1: python3.11-minimal, python3.5, python3.12-full, python3.10-dev, python3.9-doc, libpython3.5-testsuite, python3.10-nopie, python3.9, libpython3.11, idle-python3.10, libpython3.12-testsuite, libpython3.8-dev, libpython3.7-testsuite, python3.5-minimal, idle-python3.9, python3.6-doc, python3.6, python3.11-dev, libpython3.10-testsuite, python3.10-examples, python3.11-examples, python3.10-full, libpython3.10-stdlib, libpython3.10-minimal, python3.9-examples, python3.7-examples, libpython3.5, python3.7-venv, python3.5-venv, python3.11, python3.8-venv, python3.10-venv, idle-python3.11, libpython3.11-minimal, libpython3.9-testsuite, libpython3.5-minimal, libpython3.9-minimal, python3.11-nopie, python3.8-examples, libpython3.7-stdlib, python3.6-minimal, libpython3.5-dev, idle-python3.5, python3.8-dev, python3.12-nopie, libpython3.7, python3.5-dev, python3.7-doc, python3.8-doc, python3.9-full, python3.12-examples, python3.6-venv, python3.12, libpython3.6-testsuite, python3.10, libpython3.12-dev, idle-python3.7, libpython3.11-stdlib, python3.12-venv, libpython3.12, libpython3.9-stdlib, libpython3.6, idle-python3.6, libpython3.8-stdlib, idle-python3.12, libpython3.12-minimal, libpython3.7-dev, python3.8-full, libpython3.8, python3.6-dev, libpython3.10, libpython3.6-stdlib, python3.7-dev, libpython3.12-stdlib, python3.11-full, libpython3.7-minimal, libpython3.10-dev, libpython3.6-minimal, python3.11-venv, python3.8-minimal, python3.12-minimal, python3.5-examples, libpython3.9, libpython3.11-dev, python3.9-dev, python3.10-doc, python3.7-minimal, libpython3.5-stdlib, python3.12-doc, python3.11-doc, python3.9-minimal, libpython3.9-dev, libpython3.8-minimal, python3.6-examples, python3.12-dev, idle-python3.8, python3.8, python3.9-venv, libpython3.6-dev, python3.10-minimal, python3.5-doc, python3.7, libpython3.11-testsuite, libpython3.8-testsuite