PT-2020-5626 · Luajit+3 · Luajit+3

Changocheno · Published 2016-06-23 · Updated 2025-08-25 · CVE-2020-15890

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions LuaJit versions 2.1.0-beta3 and earlier

Description The issue is related to an out-of-bounds read in LuaJit, caused by mishandled gc handler frame traversal. This can be exploited by a remote attacker to cause a denial of service. The problem is also associated with the finderrfunc function in the src/lj err.c file of the LuaJIT compiler, which is related to reading beyond the permissible boundaries of a data buffer.

Recommendations For LuaJit versions 2.1.0-beta3 and earlier, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALT-PU-2016-1638

BDU:2021-01326

CVE-2020-15890

DLA-2296-1

DLA-4283-1

MGASA-2020-0342

OESA-2021-1025

USN-4501-1

Affected Products

Alt Linux

Debian

Luajit

Ubuntu

References · 27

• 🔥 https://github.com/LuaJIT/LuaJIT/issues/601 · Exploit
• https://bdu.fstec.ru/vul/2021-01326 · Security Note
• https://osv.dev/vulnerability/OESA-2021-1025 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4501-1 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2020-0342.html · Security Note
• https://ubuntu.com/security/CVE-2020-15890 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-15890 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-15890 · Security Note
• https://osv.dev/vulnerability/MGASA-2020-0342 · Vendor Advisory
• https://usn.ubuntu.com/4501-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4501-1 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-2296-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-15890 · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2020-15890 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-15890 · Vendor Advisory