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Debian Security Advisory DSA-4487-1                   security@debian.org
https://www.debian.org/security/                       Moritz Muehlenhoff
July 23, 2019                         https://www.debian.org/security/faq
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Package        : neovim
CVE ID         : CVE-2019-12735

User "Arminius" discovered a vulnerability in Vim, an enhanced version of the
standard UNIX editor Vi (Vi IMproved), which also affected the Neovim fork, an
extensible editor focused on modern code and features:
  
Editors typically provide a way to embed editor configuration commands (aka
modelines) which are executed once a file is opened, while harmful commands
are filtered by a sandbox mechanism. It was discovered that the "source"
command (used to include and execute another file) was not filtered, allowing
shell command execution with a carefully crafted file opened in Neovim.

For the oldstable distribution (stretch), this problem has been fixed
in version 0.1.7-4+deb9u1.

We recommend that you upgrade your neovim packages.

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

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