Debian Security Advisory

DLA-2966-1 libgc -- LTS security update

Date Reported:
30 Mar 2022
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2016-9427.
More information:

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:

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