SB2023052232 - Red Hat Enterprise Linux 8 update for git 

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2023052232

SB2023052232 - Red Hat Enterprise Linux 8 update for git

Published: May 22, 2023 Updated: August 16, 2024

Security Bulletin ID SB2023052232
Severity
Medium
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 20% Low 80%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 secuirty vulnerabilities.


1) Link following (CVE-ID: CVE-2023-22490)

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insecure processing of symbolic links when using local clone optimization. Git will abort local clones whose source `$GIT_DIR/objects` directory contains symbolic links, however the `objects` directory itself may still be a symbolic link. A remote attacker can trick the victim into using the local clone optimization to exfiltrate arbitrary files from the victim's system.


2) Link following (CVE-ID: CVE-2023-23946)

The vulnerability allows an attacker to compromise the affected system.

The vulnerability exists due to application allows to overwrite files outside the working tree via the "git apply" command. A remote attacker can trick the victim to run the affected command against a malicious or compromised repository and overwrite arbitrary files on the system.


3) Link following (CVE-ID: CVE-2023-25652)

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

The vulnerability exists due to a symlink following issue in "git apply --reject". A local user can create a specially crafted symbolic link to write files outside of the worktree.


4) Insufficient verification of data authenticity (CVE-ID: CVE-2023-25815)

The vulnerability allows a local user to tamper with Git messages.

The vulnerability exists due to the way Git processes localized messages. A local user on a multi-user machine can display a malicious message to the user.


5) Input validation error (CVE-ID: CVE-2023-29007)

The vulnerability allows an attacker to tamper with Git configuration.

The vulnerability exists due to insufficient input validation in "git submodule deinit" when renaming or deleting a section from a configuration file. A remote attacker can trick the victim into running the command a malicious configuration file and tamper with Git configuration on the affected system.


Remediation

Install update from vendor's website.

References