SB2022071977 - Fedora 36 update for lua

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Main Vulnerability Database SB2022071977

SB2022071977 - Fedora 36 update for lua

Published: July 19, 2022

Security Bulletin ID SB2022071977
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

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

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Heap-based buffer overflow (CVE-ID: CVE-2022-28805)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the singlevar function in lparser.c. A remote attacker can use a specially crafted luaK_exp2anyregup call, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


2) Heap-based buffer overflow (CVE-ID: CVE-2022-33099)

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

The vulnerability exists due to a boundary error in the luaG_runerror component. A remote attacker 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