SB2023092946 - Gentoo update for sudo 

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Main Vulnerability Database SB2023092946

SB2023092946 - Gentoo update for sudo

Published: September 29, 2023

Security Bulletin ID SB2023092946
Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Double Free (CVE-ID: CVE-2023-27320)

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

The vulnerability exists due to a boundary error when matching a sudoers rule that contains a per-command chroot directive (CHROOT=dir). A local user can trigger a double free error and execute arbitrary code with elevated privileges.



2) OS Command Injection (CVE-ID: CVE-2023-28486)

The vulnerability allows a local user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation when processing control characters in the log messages. A local user can inject specially crafted characters to the log messages and execute arbtirary OS commands on the system when the command is executed from the log (e.g. via the "sudoreplay -l").


3) OS Command Injection (CVE-ID: CVE-2023-28487)

The vulnerability allows a local user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation when processing control characters in the sudoreplay output. A local user can inject specially crafted characters to the log messages and execute arbitrary OS commands on the system.

Remediation

Install update from vendor's website.

References