Bug#915564: wavpack: CVE-2018-19840: Infinite loop when block_samples==0 using wavpack

[Salvatore Bonaccorso <carnil@debian.org>]

Source: wavpack
Version: 5.1.0-4
Severity: important
Tags: patch security upstream
Forwarded: https://github.com/dbry/WavPack/issues/53
Control: found -1 5.0.0-1
Control: found -1 5.0.0-2+deb9u2

Hi,

The following vulnerability was published for wavpack.

CVE-2018-19840[0]:
| The function WavpackPackInit in pack_utils.c in libwavpack.a in WavPack
| through 5.1.0 allows attackers to cause a denial-of-service (resource
| exhaustion caused by an infinite loop) via a crafted wav audio file
| because WavpackSetConfiguration64 mishandles a sample rate of zero.

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2018-19840
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19840
[1] https://github.com/dbry/WavPack/commit/070ef6f138956d9ea9612e69586152339dbefe51
[2] https://github.com/dbry/WavPack/issues/53

Regards,
Salvatore