Integer overflow in Zephyrproject Zephyr
CVE-2020-10067
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.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (36.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.3% 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
- Zephyrproject Zephyr — versions 1.14.1, 2.1.0
- Zephyrproject-Rtos Zephyr — versions 1.14.1, 2.1.0
Weakness classification (CWE)
References
- zephyrprojectsec.atlassian.net/browse/ZEPSEC-27 (Third Party Advisory)
- github.com/zephyrproject-rtos/zephyr/pull/23239 (Patch, Third Party Advisory)
- github.com/zephyrproject-rtos/zephyr/pull/23653 (Patch, Third Party Advisory)
- github.com/zephyrproject-rtos/zephyr/pull/23654 (Patch, Third Party Advisory)
- docs.zephyrproject.org/latest/security/vulnerabilities.html
Frequently asked questions
- What is CVE-2020-10067?
- CVE-2020-10067 is a high-severity vulnerability in Zephyrproject Zephyr, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2020-05-11.
- How severe is CVE-2020-10067?
- High severity. CVSS v3 base score is 7.5 out of 10.