Buffer overflow in Apple macOS
CVE-2019-8839
A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.2, Security Update 2019-002 Mojave, and Security Update 2019-007 High Sierra. An attacker in a privileged position may be able to perform a denial of service attack.
Vulnerability class: Buffer Overflow
EPSS: 0.007 (49.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Apple Macos — versions unspecified
- Apple Mac_os_x
Weakness classification (CWE)
References
- product-security@apple.com (x_refsource_MISC, Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-8839?
- CVE-2019-8839 is a medium-severity vulnerability in Apple macOS, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.5/10. Published 2020-10-27.
- How severe is CVE-2019-8839?
- Medium severity. CVSS v3 base score is 5.5 out of 10.