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Ubuntu Security Notice USN-4151-2

Ubuntu Security Notice USN-4151-2
Posted Oct 10, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4151-2 - USN-4151-1 fixed several vulnerabilities in Python. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. 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. Various other issues were also addressed.

tags | advisory, remote, vulnerability, python
systems | linux, ubuntu
advisories | CVE-2019-16056, CVE-2019-16935
MD5 | 26a51b2d636fdb5b05ef3e17c0166d14

Ubuntu Security Notice USN-4151-2

Change Mirror Download
=========================================================================
Ubuntu Security Notice USN-4151-2
October 10, 2019

python2.7, python3.4 vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in Python.

Software Description:
- python2.7: An interactive high-level object-oriented language
- 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

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

References:
https://usn.ubuntu.com/4151-2
https://usn.ubuntu.com/4151-1
CVE-2019-16056, CVE-2019-16935
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