Out-of-bounds read in LuaJIT



| Updated: 2020-08-08
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-15890
CWE-ID CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
 LuaJIT
Other software / Other software solutions

Debian Linux
Operating systems & Components / Operating system

Vendor siddhesh (Siddhesh Poyarekar)
Debian

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU34131

Risk: Medium

CVSSv4.0: 6.6 [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/E:U/U:Green]

CVE-ID: CVE-2020-15890

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

LuaJIT: 2.1.0

Debian Linux: 2.1.0 - 9.0

CPE2.3 External links

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


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



###SIDEBAR###