SB2022051183 - openEuler 22.03 LTS update for lua

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) Type Confusion (CVE-ID: CVE-2021-44647)

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

The vulnerability exists due to a type confusion error within the funcnamefromcode() function in ldebug.c. A remote attacker can pass specially crafted data to the application, trigger a type confusion error and perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1632