Fedora 34: FEDORA-2022-34de4f833d Critical: cifs-utils Buffer Overflow

The SMB/CIFS protocol is a standard file sharing protocol widely deployed

on Microsoft Windows machines. This package contains tools for mounting

shares on Linux using the SMB/CIFS protocol. The tools in this package

work in conjunction with support in the kernel to allow one to mount a

SMB/CIFS share onto a client and use it as if it were a standard Linux

file system.

This is a security release to address the following bugs: - CVE-2022-27239:

mount.cifs: fix length check for ip option parsing - CVE-2022-29869: mount.cifs:

fix verbose messages on option parsing Description CVE-2022-27239: In cifs-utils through 6.14, a stack-based buffer overflow when parsing the mount.cifs

ip= command-line argument could lead to local attackers gaining root privileges.

CVE-2022-29869: cifs-utils through 6.14, with verbose logging, can cause an

information leak when a file contains = (equal sign) characters but is not a

valid credentials file. Both issues were originally reported and fixed by

Jeffrey Bencteux.

* Sat Apr 30 2022 Alexander Bokovoy - 6.15-1

- Upstream release 6.15

- CVE-2022-27239: mount.cifs: fix length check for ip option parsing

- CVE-2022-29869: mount.cifs: fix verbose messages on option parsing

- Fixes: rhbz#2080525

[ 1 ] Bug #2080525 - cifs-utils-6.15 is available

https://bugzilla.redhat.com/show_bug.cgi?id=2080525

su -c 'dnf upgrade --advisory FEDORA-2022-34de4f833d' at the command

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

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

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/security/

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