Fedora 33: FEDORA-2021-f02d345a2d Urgent Hivex Buffer Overflow Patch

Hive files are the undocumented binary files that Windows uses to

store the Windows Registry on disk. Hivex is a library that can read

and write to these files.

'hivexsh' is a shell you can use to interactively navigate a hive

binary file.

'hivexregedit' (in perl-hivex) lets you export and merge to the

textual regedit format.

'hivexml' can be used to convert a hive file to a more useful XML

format.

In order to get access to the hive files themselves, you can copy them

from a Windows machine. They are usually found in

%systemroot%\system32\config. For virtual machines we recommend

using libguestfs or guestfish to copy out these files. libguestfs

also provides a useful high-level tool called 'virt-win-reg' (based on

hivex technology) which can be used to query specific registry keys in

an existing Windows VM.

For OCaml bindings, see 'ocaml-hivex-devel'.

For Perl bindings, see 'perl-hivex'.

For Python 3 bindings, see 'python3-hivex'.

For Ruby bindings, see 'ruby-hivex'.

New upstream version 1.3.21. Fixes CVE-2021-3622 limit recursion in ri-records.

* Mon Aug 2 2021 Richard W.M. Jones - 1.3.21-1

- New upstream version 1.3.21.

- Fixes CVE-2021-3622 limit recursion in ri-records.

[ 1 ] Bug #1975489 - CVE-2021-3622 hivex: stack overflow due to recursive call of _get_children()

https://bugzilla.redhat.com/show_bug.cgi?id=1975489

su -c 'dnf upgrade --advisory FEDORA-2021-775b170f95' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

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