Debian 9: DLA-2966-1 Moderate Advisory: Libgc Integer Overflow Issue

libgc, a conservative garbage collector, is vulnerable to integer
overflows in multiple places. In some cases, when asked to allocate a huge
quantity of memory, instead of failing the request, it will return a
pointer to a small amount of memory possibly tricking the application into
a buffer overwrite.


For Debian 9 stretch, this problem has been fixed in version
1:7.4.2-8+deb9u1.

We recommend that you upgrade your libgc packages.

For the detailed security status of libgc please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/libgc

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS