Out-of-bounds read in LuaJIT and Debian Linux - CVE-2020-15890

Vulnerability identifier: #VU34131

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-15890

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

LuaJit through 2.1.0-beta3 has an out-of-bounds read because __gc handler frame traversal is mishandled.

LuaJIT
Debian Linux
Fedora
Ubuntu
openEuler
luajit (Alpine package)
wireshark (Alpine package)
libluajit-5.1-2 (Ubuntu package)
libluajit-5.1-common (Ubuntu package)
libluajit-5.1-dev (Ubuntu package)
luajit (Ubuntu package)
luajit
luajit-debuginfo
luajit-debugsource
luajit-devel
luajit-help

Install update from vendor's website.

luajit (Alpine package) - update to 2.2.0-r3
wireshark (Alpine package) - update to 3.4.2-r0
libluajit-5.1-2 (Ubuntu package) - update to 2.0.4+dfsg-1+deb9u1build0.16.04.1
libluajit-5.1-common (Ubuntu package) - update to 2.0.4+dfsg-1+deb9u1build0.16.04.1
libluajit-5.1-dev (Ubuntu package) - update to 2.0.4+dfsg-1+deb9u1build0.16.04.1
luajit (Ubuntu package) - update to 2.0.4+dfsg-1+deb9u1build0.16.04.1
luajit - update to 2.0.5-1.20220913.46e62cd.el7
luajit - update to 2.1.0-1
luajit-debuginfo - update to 2.1.0-1
luajit-debugsource - update to 2.1.0-1
luajit-devel - update to 2.1.0-1
luajit-help - update to 2.1.0-1

• https://github.com/LuaJIT/LuaJIT/issues/601
• https://lists.debian.org/debian-lts-announce/2020/07/msg00026.html

• Out-of-bounds read in LuaJIT
• Out-of-bounds read in luajit (Alpine package)
• openEuler update for luajit
• Fedora EPEL 7 update for luajit
• Ubuntu update for luajit