[Secure-testing-team] Bug#889096: zziplib: CVE-2018-6381: Invalid memory access in zzip_disk_fread

[Salvatore Bonaccorso]

Source: zziplib
Version: 0.13.62-3
Severity: important
Tags: security upstream
Forwarded: https://github.com/gdraheim/zziplib/issues/12

Hi,

the following vulnerability was published for zziplib.

CVE-2018-6381[0]:
| In ZZIPlib 0.13.67, there is a segmentation fault caused by invalid
| memory access in the zzip_disk_fread function (zzip/mmapped.c) because
| the size variable is not validated against the amount of file->stored
| data.

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-2018-6381
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6381
[1] https://github.com/gdraheim/zziplib/issues/12

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore