[DRE-maint] Bug#903086: ruby-grape: CVE-2018-3769: Default formatter error can cause XSS rendering issue

[Salvatore Bonaccorso]

Source: ruby-grape
Version: 1.0.3-1
Severity: important
Tags: patch security upstream
Forwarded: https://github.com/ruby-grape/grape/issues/1762

Hi,

The following vulnerability was published for ruby-grape.

CVE-2018-3769[0]:
| ruby-grape ruby gem suffers from a cross-site scripting (XSS)
| vulnerability via "format" parameter.

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-2018-3769
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3769
[1] https://github.com/ruby-grape/grape/issues/1762
[2] https://github.com/ruby-grape/grape/pull/1763
[3] https://github.com/ruby-grape/grape/commit/6876b71efc7b03f7ce1be3f075eaa4e7e6de19af

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore