A malicious userspace application can cause a integer overflow and bypass security checks performed by system call handlers. The impact would depend on the underlying system call and can range from denial of service to information leak to memory corruption resulting in code execution within the kernel. See NCC-ZEP-005 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.
Published 2020-05-11 23:15:12
Updated 2020-06-05 18:15:13
View at NVD,   CVE.org
Vulnerability category: OverflowMemory CorruptionDenial of service

Exploit prediction scoring system (EPSS) score for CVE-2020-10067

0.05%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 19 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-10067

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.2
HIGH AV:L/AC:L/Au:N/C:C/I:C/A:C
3.9
10.0
NIST
7.8
HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1.8
5.9
NIST
7.5
HIGH CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
0.8
6.0
Zephyr Project

CWE ids for CVE-2020-10067

  • The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.
    Assigned by:
    • nvd@nist.gov (Primary)
    • vulnerabilities@zephyrproject.org (Secondary)

References for CVE-2020-10067

Products affected by CVE-2020-10067

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