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AUSCERT External Security Bulletin Redistribution
ESB-2018.3525
pyOpenSSL vulnerabilities patched in Ubuntu
9 November 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: pyOpenSSL
Publisher: Ubuntu
Operating System: Ubuntu
UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2018-1000808 CVE-2018-1000807
Original Bulletin:
http://www.ubuntu.com/usn/usn-3813-1
Comment: This advisory references vulnerabilities in products which run on
platforms other than Ubuntu. It is recommended that administrators
running pyOpenSSL check for an updated version of the software for
their operating system.
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Ubuntu Security Notice USN-3813-1
November 08, 2018
pyopenssl vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- - Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in pyOpenSSL.
Software Description:
- - pyopenssl: Python wrapper around the OpenSSL library
Details:
It was discovered that pyOpenSSL incorrectly handled memory when handling
X509 objects. A remote attacker could use this issue to cause pyOpenSSL to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2018-1000807)
It was discovered that pyOpenSSL incorrectly handled memory when performing
operations on a PKCS #12 store. A remote attacker could possibly use this
issue to cause pyOpenSSL to consume resources, resulting in a denial of
service. (CVE-2018-1000808)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.04 LTS:
python-openssl 0.15.1-2ubuntu0.2
python3-openssl 0.15.1-2ubuntu0.2
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3813-1
CVE-2018-1000807, CVE-2018-1000808
Package Information:
https://launchpad.net/ubuntu/+source/pyopenssl/0.15.1-2ubuntu0.2
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