SB2022102583 - Fedora 37 update for samba

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Main Vulnerability Database SB2022102583

SB2022102583 - Fedora 37 update for samba

Published: October 25, 2022

Security Bulletin ID SB2022102583
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) UNIX symbolic link following (CVE-ID: CVE-2022-3592)

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to a symlink following issue. A remote user with access to the exported part of the file system under a share via SMB1 unix extensions or NFS can create symlinks to files outside of the smbd configured share path and access otherwise restricted files on the server. 


2) Heap-based buffer overflow (CVE-ID: CVE-2022-3437)

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal. A remote user can send specially crafted data to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.



Remediation

Install update from vendor's website.

References