Buffer overflow in Jerryscript
CVE-2023-36109
Buffer Overflow vulnerability in JerryScript version 3.0, allows remote attackers to execute arbitrary code via ecma_stringbuilder_append_raw component at /jerry-core/ecma/base/ecma-helpers-string.c.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.024 (83.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.024 · change: +0.004
Affected products
- Jerryscript — versions 3.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/jerryscript-project/jerryscript/issues/5080 (Exploit, Issue Tracking)
- github.com/Limesss/CVE-2023-36109/tree/main (Exploit)
Frequently asked questions
- What is CVE-2023-36109?
- CVE-2023-36109 is a critical-severity vulnerability in Jerryscript, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2023-09-20.
- How severe is CVE-2023-36109?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-36109 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.