MOSS/Secure Open Source/Completed: Difference between revisions
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Dates: July - September 2016 | Dates: July - September 2016 | ||
[http://www.zlib.net/] is a compression library implementing the 'deflate' compression algorithm, used in countless applications. The audit was performed by [https://www.trailofbits.com/ Trail of Bits]. | [http://www.zlib.net/ zlib] is a compression library implementing the 'deflate' compression algorithm, used in countless applications. The audit was performed by [https://www.trailofbits.com/ Trail of Bits]. | ||
The team found the following vulnerabilities: | The team found the following vulnerabilities: | ||
Revision as of 14:37, 3 October 2016
Secure Open Source has completed the following audits.
PCRE
Dates: October 2015 - June 2016
PCRE (Perl-Compatible Regular Expressions) is a C library for implementing regular expressions in a codebase. It is used in various open source projects including Exim, Apache, PHP and KDE, as well as Apple Safari. We audited PCRE2, a newer version which is currently less commonly-used but which is expected to become increasingly common. The audit was performed by Cure53.
The team found the following vulnerabilities:
- 1 Critical
- 5 Medium
- 20 Low
- 3 Informational
The critical vulnerability was a stack buffer overflow which could have led to arbitrary code execution when compiling untrusted regular expressions.
libjpeg-turbo
Dates: November 2015 - June 2016
libjpeg-turbo is a fork of the libjpeg codebase which is particularly focussed on speed, and on compatibility with the most commonly-used standard profiles of JPEG. It is used by a number of open source projects, including Chrome, LibreOffice, Firefox and various flavours of VNC. The audit was performed by Cure53.
The team found the following vulnerabilities:
- 1 High
- 2 Medium
- 2 Low
The high vulnerability was an out-of-bounds read. It is unclear exactly how exploitable it was. However, more interesting were the two medium vulnerabilities, which were initially reported as DoS bugs in the libjpeg-turbo library but on further investigation were found to be issues with the JPEG standard itself. These issues were reproduced across multiple JPEG implementations, can be triggered by entirely legal JPEGs, and so are not easy to mitigate in any JPEG library itself. We have written up these issues in a separate report, along with our suggestions as to how applications using JPEG can mitigate them in their own code.
phpMyAdmin
Dates: May - June 2016
phpMyAdmin is a web-based administration tool for MySQL databases. The audit was performed by NCC Group.
The team found the following vulnerabilities:
- 3 Medium
- 5 Low
- 1 Informational
NCC Group found no serious issues in this codebase.
dnsmasq
Dates: May - August 2016
dnsmasq is a lightweight implementation of DNS, DHCP, router advertisement and network boot. It is used in resource-constrained environments such as routers and firewalls (e.g. openWRT and DD-WRT), Android, and OpenStack. The audit was performed by Cure53.
The team found the following vulnerabilities:
- 1 Medium
- 5 Low
zlib
Dates: July - September 2016
zlib is a compression library implementing the 'deflate' compression algorithm, used in countless applications. The audit was performed by Trail of Bits.
The team found the following vulnerabilities:
- 1 Medium
- 4 Low
One of the Low severity issues is still under discussion between the zlib development team and the auditors, as they are working out how to resolve it without performance degradation.