A pxz security update has been released for Fedora 31.

SECURITY: Fedora 31 Update: pxz-4.999.9-19.beta.20200421git.fc31

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Fedora Update Notification
FEDORA-2020-07fcbfddbd
2020-04-30 03:42:10.988557
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Name : pxz
Product : Fedora 31
Version : 4.999.9
Release : 19.beta.20200421git.fc31
URL :   https://jnovy.fedorapeople.org/pxz/
Summary : Parallel LZMA compressor using XZ
Description :
Parallel XZ is a compression utility that takes advantage of running
XZ compression simultaneously on different parts of an input file on
multiple cores and processors. This significantly speeds up compression time.

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Update Information:

- Update to GIT 20200421 - Added patch against race condition in setting
permissions on output file (#1182024) - Added patch to revert environment
redirect allowing `export XZ_OPT="-9"` or similar
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ChangeLog:

* Tue Apr 21 2020 Robert Scheck 4.999.9-19.beta.20200421git
- Update to GIT 20200421
- Added patch against race condition in setting permissions on output file (#1182024)
- Added patch to revert environment redirect allowing 'export XZ_OPT="-9"' or similar
* Thu Jan 30 2020 Fedora Release Engineering - 4.999.9-18.beta.20120930git
- Rebuilt for   https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
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References:

[ 1 ] Bug #1182024 - CVE-2015-1200 pxz: race condition in setting permissions on output file
  https://bugzilla.redhat.com/show_bug.cgi?id=1182024
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2020-07fcbfddbd' at the command
line. For more information, refer to the dnf documentation available at
  http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
  https://fedoraproject.org/keys