Bug#860735: CVE-2017-7942: memory leak in avs does not affect old version

[Bastien ROUCARIES]

control: notfound -1,8:6.6.0.4-3
control: notfound -1 8:6.7.7.10-5
control: notfound -1 8:6.8.9.9-5
control: notfound -1 8:6.8.9.9-5+deb8u8
control: notfound -1 8:6.7.7.10-5+deb7u13
>
> Due to code change not affected