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Arch Linux: 202010-5 High: Lua Arbitrary Code Execution

The package lua before version 5.4.1-1 is vulnerable to arbitrary code execution. . Arch Linux Security Advisory ASA-202010-5 ======================================== Severity: High Date : 2020-10-18 CVE-ID : CVE-2020-15888 CVE-2020-15889 Package : lua Type : arbitrary code execution Remote : Yes Link : https://security.archlinux.org/AVG-1207 Summary ====== The package lua before version 5.4.1-1 is vulnerable to arbitrary code execution. Resolution ========= Upgrade to 5.4.1-1. # pacman -Syu "lua> =5.4.1-1" The problems have been fixed upstream in version 5.4.1. Workaround ========= None. Description ========== - CVE-2020-15888 (arbitrary code execution) Lua through 5.4.0 mishandles the interaction between stack resizes and garbage collection, leading to a heap-based buffer overflow, heap-based buffer over-read, or use-after-free. - CVE-2020-15889 (arbitrary code execution) Lua through 5.4.0 has a getobjname heap-based buffer over-read because youngcollection in lgc.c uses markold for an insufficient number of list members. Impact ===== A remote attacker is capable of executing arbitrary code on the affected host. References ========= https://github.com/lua/lua/commit/6298903e35217ab69c279056f925fb72900ce0b7 https://github.com/lua/lua/commit/eb41999461b6f428186c55abd95f4ce1a76217d5 https://github.com/lua/lua/commit/127e7a6c8942b362aa3c6627f44d660a4fb75312 https://security.archlinux.org/CVE-2020-15888 https://security.archlinux.org/CVE-2020-15889 . The Arch Linux Security Advisory ASA-202310-5 highlights a critical vulnerability resulting in potential arbitrary code execution found in lua versions prior to 5.4.1-1.. Arch Linux, Arbitrary Code Execution, Lua Update, Security Advisory, High Severity. . LinuxSecurity.com Team

Oct 21, 2020 ArchLinux