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Debian Security Advisory 4743-1

Debian Security Advisory 4743-1
Posted Aug 10, 2020
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4743-1 - A flaw was discovered in ruby-kramdown, a fast, pure ruby, Markdown parser and converter, which could result in unintended read access to files or unintended embedded Ruby code execution when the {::options /} extension is used together with the 'template' option.

tags | advisory, code execution, ruby
systems | linux, debian
advisories | CVE-2020-14001
SHA-256 | 6bc52df88c96692e59b5c7202800ee946dcb53dad8e3bb0a1c3b8d8e00c387df

Debian Security Advisory 4743-1

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- -------------------------------------------------------------------------
Debian Security Advisory DSA-4743-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
August 10, 2020 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : ruby-kramdown
CVE ID : CVE-2020-14001
Debian Bug : 965305

A flaw was discovered in ruby-kramdown, a fast, pure ruby, Markdown
parser and converter, which could result in unintended read access to
files or unintended embedded Ruby code execution when the {::options /}
extension is used together with the 'template' option.

The Update introduces a new option 'forbidden_inline_options' to
restrict the options allowed with the {::options /} extension. By
default the 'template' option is forbidden.

For the stable distribution (buster), this problem has been fixed in
version 1.17.0-1+deb10u1.

We recommend that you upgrade your ruby-kramdown packages.

For the detailed security status of ruby-kramdown please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/ruby-kramdown

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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