Out-of-bounds read in JerryScript - CVE-2020-29657
Published: December 9, 2020 / Updated: January 22, 2021
Vulnerability identifier: #VU49925
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-29657
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in the main_print_unhandled_exception() function in the main-utils.c file. A remote attacker can trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.
Affected software
JerryScript
How to mitigate CVE-2020-29657
Install updates from vendor's website.
JerryScript - update to 2.4.0