CVE-2020-23303

There is a heap-buffer-overflow at jmem-poolman.c:165 in jmem_pools_collect_empty in JerryScript 2.2.0

published June 10, 2021

CVSS
—
EPSS
1%
Percentile
70.5
In the wild
Unconfirmed
What it is

⚠️ A heap-buffer overflow lurking in jmem-poolman.c could spell trouble for JerryScript 2.2.0! Think of it like a crowded restaurant where the kitchen gets overwhelmed — if too many orders pile up, the chef might accidentally mix up ingredients, causing a chaotic meal. In this case, the buffer overflow can disrupt memory handling, leading to unpredictable behavior. An attacker could exploit this vulnerability, potentially causing the application to crash or behave in a way that exposes sensitive data. While it hasn’t been exploited yet, the risk of memory corruption isn’t something to overlook!

Put simply

Think of it like a crowded restaurant where the kitchen gets overwhelmed — if too many orders pile up, the chef might accidentally mix up ingredients, causing a chaotic meal. In this case, the buffer overflow can disrupt memory handling, leading to unpredictable behavior. This heap-buffer overflow occurs at jmem_pools_collect_empty, allowing attackers to manipulate memory allocation and potentially execute arbitrary code.

What to do

An attacker could exploit this vulnerability, potentially causing the application to crash or behave in a way that exposes sensitive data. While it hasn’t been exploited yet, the risk of memory corruption isn’t something to overlook! To mitigate this vulnerability, update to the latest version of JerryScript that addresses the overflow. Additionally, review your memory management practices to ensure safety against similar issues in the future. You can tackle this! Patch up JerryScript and stay ahead of potential problems. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01314 · 70.5th percentile
Published
2021-06-10T22:12Z
EPSS history
Timeline
  • 10 JUN 22:12Z
    There is a heap-buffer-overflow at jmem-poolman.c:165 in jmem_pools_collect_empty in JerryScript 2.2.0
    cvelistv5