Bug#876778: libvorbis: CVE-2017-14633

[Salvatore Bonaccorso]

Source: libvorbis
Version: 1.3.5-4
Severity: important
Tags: security upstream
Forwarded: https://gitlab.xiph.org/xiph/vorbis/issues/2329

Hi,

the following vulnerability was published for libvorbis.

CVE-2017-14633[0]:
| In Xiph.Org libvorbis 1.3.5, an out-of-bounds array read vulnerability
| exists in the function mapping0_forward() in mapping0.c, which may lead
| to DoS when operating on a crafted audio file with vorbis_analysis().

On upstream issue there is no reproducer attached, and no patch
available as per 2017-09-25 yet.

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-2017-14633
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14633
[1] https://gitlab.xiph.org/xiph/vorbis/issues/2329

Please adjust the affected versions in the BTS as needed, when known
more.

Regards,
Salvatore