[Secure-testing-team] Bug#870192: libytnef: CVE-2017-9474: heap-based buffer overflow in DecompressRTF

[Salvatore Bonaccorso]

Source: libytnef
Version: 1.9.2-2
Severity: important
Tags: upstream security
Forwarded: https://github.com/Yeraze/ytnef/issues/40

Hi,

the following vulnerability was published for libytnef.

CVE-2017-9474[0]:
| In ytnef 1.9.2, the DecompressRTF function in lib/ytnef.c allows remote
| attackers to cause a denial of service (heap-based buffer over-read and
| application crash) via a crafted file.

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-2017-9474
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9474
[1] https://github.com/Yeraze/ytnef/issues/40

Please adjust the affected versions in the BTS as needed, older
version than 1.9.2 might be similarly affected.

Regards,
Salvatore