An anonymous researcher found evidence of memory corruption in the way
Mozilla Firefox handles certain types of SVG comment DOM nodes.
Additionally, Frederik Reiss discovered a heap-based buffer overflow in
the conversion of a CSS cursor. Other issues with memory corruption
were also fixed. Mozilla Firefox also contains less severe
vulnerabilities involving JavaScript and Java.
Impact
An attacker could entice a user to view a specially crafted web page
that will trigger one of the vulnerabilities, possibly leading to the
execution of arbitrary code. It is also possible for an attacker to
perform cross-site scripting attacks, leading to the exposure of
sensitive information, like user credentials.
Workaround
There are no known workarounds for all the issues at this time.
Resolution
All Mozilla Firefox users should upgrade to the latest version:
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.