Package        : firefox-esr
Version        : 52.7.2esr-1~deb7u1
CVE ID         : CVE-2018-5146 CVE-2018-5147

Richard Zhu and Huzaifa Sidhpurwala discovered that an out-of-bounds
memory write when playing Vorbis media files could result in the
execution of arbitrary code.

For Debian 7 "Wheezy", these problems have been fixed in version
52.7.2esr-1~deb7u1.

We recommend that you upgrade your firefox-esr packages.

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