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AUSCERT External Security Bulletin Redistribution
ESB-2018.3549.2
Python vulnerabilities patched in Ubuntu
16 November 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: python2.7
python3.4
python3.5
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2018-1000802 CVE-2018-1000030 CVE-2018-14647
CVE-2018-1061 CVE-2018-1060
Reference: ESB-2018.2893
ESB-2018.2894
ESB-2018.3331
Original Bulletin:
http://www.ubuntu.com/usn/usn-3817-1
http://www.ubuntu.com/usn/usn-3817-2
Revision History: November 16 2018: Add advisory for 12.04
November 14 2018: Initial Release
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Ubuntu Security Notice USN-3817-1
November 13, 2018
python2.7, python3.4, python3.5 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- - Ubuntu 18.04 LTS
- - Ubuntu 16.04 LTS
- - Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in Python.
Software Description:
- - python2.7: An interactive high-level object-oriented language
- - python3.5: An interactive high-level object-oriented language
- - python3.4: An interactive high-level object-oriented language
Details:
It was discovered that Python incorrectly handled large amounts of data. A
remote attacker could use this issue to cause Python to crash, resulting in
a denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2018-1000030)
It was discovered that Python incorrectly handled running external commands
in the shutil module. A remote attacker could use this issue to cause
Python to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2018-1000802)
It was discovered that Python incorrectly used regular expressions
vulnerable to catastrophic backtracking. A remote attacker could possibly
use this issue to cause a denial of service. This issue only affected
Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2018-1060, CVE-2018-1061)
It was discovered that Python failed to initialize Expat's hash salt. A
remote attacker could possibly use this issue to cause hash collisions,
leading to a denial of service. (CVE-2018-14647)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.04 LTS:
python2.7 2.7.15~rc1-1ubuntu0.1
python2.7-minimal 2.7.15~rc1-1ubuntu0.1
Ubuntu 16.04 LTS:
python2.7 2.7.12-1ubuntu0~16.04.4
python2.7-minimal 2.7.12-1ubuntu0~16.04.4
python3.5 3.5.2-2ubuntu0~16.04.5
python3.5-minimal 3.5.2-2ubuntu0~16.04.5
Ubuntu 14.04 LTS:
python2.7 2.7.6-8ubuntu0.5
python2.7-minimal 2.7.6-8ubuntu0.5
python3.4 3.4.3-1ubuntu1~14.04.7
python3.4-minimal 3.4.3-1ubuntu1~14.04.7
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3817-1
CVE-2018-1000030, CVE-2018-1000802, CVE-2018-1060, CVE-2018-1061,
CVE-2018-14647
Package Information:
https://launchpad.net/ubuntu/+source/python2.7/2.7.15~rc1-1ubuntu0.1
https://launchpad.net/ubuntu/+source/python2.7/2.7.12-1ubuntu0~16.04.4
https://launchpad.net/ubuntu/+source/python3.5/3.5.2-2ubuntu0~16.04.5
https://launchpad.net/ubuntu/+source/python2.7/2.7.6-8ubuntu0.5
https://launchpad.net/ubuntu/+source/python3.4/3.4.3-1ubuntu1~14.04.7
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USN-3817-2: Python vulnerabilities
15 November 2018
python2.7 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
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
Details
USN-3817-1 fixed a vulnerability in Python. This update provides the
corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that Python incorrectly handled large amounts of data. A
remote attacker could use this issue to cause Python to crash, resulting in a
denial of service, or possibly execute arbitrary code. (CVE-2018-1000030)
It was discovered that Python incorrectly handled running external commands in
the shutil module. A remote attacker could use this issue to cause Python to
crash, resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2018-1000802)
It was discovered that Python incorrectly used regular expressions vulnerable
to catastrophic backtracking. A remote attacker could possibly use this issue
to cause a denial of service. (CVE-2018-1060, CVE-2018-1061)
It was discovered that Python failed to initialize Expat's hash salt. A remote
attacker could possibly use this issue to cause hash collisions, leading to a
denial of service. (CVE-2018-14647)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 12.04 ESM
python2.7 - 2.7.3-0ubuntu3.11
python2.7-minimal - 2.7.3-0ubuntu3.11
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-3817-1
o CVE-2018-1000030
o CVE-2018-1000802
o CVE-2018-1060
o CVE-2018-1061
o CVE-2018-14647
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