Buffer overflow in Apple macOS
CVE-2023-42856
The issue was addressed with improved memory handling. This issue is fixed in macOS Sonoma 14.1, macOS Monterey 12.7.1, macOS Ventura 13.6.1. Processing a file may lead to unexpected app termination or arbitrary code execution.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (31.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Apple macOS — versions unspecified
Weakness classification (CWE)
References
- support.apple.com/en-us/HT213984 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/HT213985 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/HT213983 (Release Notes, Vendor Advisory)
- support.apple.com/kb/HT213984 (Release Notes, Vendor Advisory)
- support.apple.com/kb/HT213985 (Release Notes, Vendor Advisory)
- support.apple.com/kb/HT213983 (Release Notes, Vendor Advisory)
- seclists.org/fulldisclosure/2023/Oct/21 (Mailing List, Third Party Advisory)
- seclists.org/fulldisclosure/2023/Oct/24 (Mailing List, Third Party Advisory)
- seclists.org/fulldisclosure/2023/Oct/26 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-42856?
- CVE-2023-42856 is a high-severity vulnerability in Apple macOS, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2023-10-25.
- How severe is CVE-2023-42856?
- High severity. CVSS v3 base score is 7.8 out of 10.