SB2020101807 - Arch Linux update for lua 

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Main Vulnerability Database SB2020101807

SB2020101807 - Arch Linux update for lua

Published: October 18, 2020

Security Bulletin ID SB2020101807
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Heap-based buffer overflow (CVE-ID: CVE-2020-15888)

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

The vulnerability exists due to a boundary error during interaction between stack resizes and garbage collection in ldo.c file. A remote attacker can pass specially crafted data to the application, 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) Out-of-bounds read (CVE-ID: CVE-2020-15889)

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

The vulnerability exists due to getobjname heap-based buffer over-read within the youngcollection() function in lgc.c that uses markold for an insufficient number of list members. A remote attacker can perform a denial of service attack.


Remediation

Install update from vendor's website.

References