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Debian LTS Advisory DLA-2719-1                [email protected]
https://www.debian.org/lts/security/                      Sylvain Beucler
July 23, 2021                                 https://wiki.debian.org/LTS
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Package        : ruby-actionpack-page-caching
Version        : 1.0.2-4+deb9u1
CVE ID         : CVE-2020-8159
Debian Bug     : 960680

ooooooo_q discovered that the actionpack_page-caching Ruby gem, a
static page caching module for Rails, allows an attacker to write
arbitrary files to a web server, potentially resulting in remote code
execution if the attacker can write unescaped ERB to a view.

For Debian 9 stretch, this problem has been fixed in version

We recommend that you upgrade your ruby-actionpack-page-caching packages.

For the detailed security status of ruby-actionpack-page-caching please refer to
its security tracker page at:

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