[DRE-maint] Bug#909933: jekyll: CVE-2018-17567: bypass of symlink checking

[Salvatore Bonaccorso]

Source: jekyll
Version: 3.8.3+dfsg-3
Severity: grave
Tags: patch security upstream
Forwarded: https://github.com/jekyll/jekyll/pull/7224
Control: found -1 3.1.6+dfsg-3

Hi,

The following vulnerability was published for jekyll.

CVE-2018-17567[0]:
| Jekyll through 3.6.2, 3.7.x through 3.7.3, and 3.8.x through 3.8.3
| allows attackers to access arbitrary files by specifying a symlink in
| the "include" key in the "_config.yml" 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-2018-17567
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17567
[1] https://github.com/jekyll/jekyll/pull/7224
[2] https://jekyllrb.com/news/2018/09/19/security-fixes-for-3-6-3-7-3-8/

Regards,
Salvatore