CVE-2020-10067
A malicious userspace application can cause a integer overflow and bypass security checks performed by system call handlers.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.45%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.45% probability · 38th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- zephyrproject/zephyr
- Source
- vulnerabilities@zephyrproject.org
References
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10067
- https://github.com/zephyrproject-rtos/zephyr/pull/23239Patch, Third Party Advisory
- https://github.com/zephyrproject-rtos/zephyr/pull/23653Patch, Third Party Advisory
- https://github.com/zephyrproject-rtos/zephyr/pull/23654Patch, Third Party Advisory
- https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-27Third Party Advisory
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10067
- https://github.com/zephyrproject-rtos/zephyr/pull/23239Patch, Third Party Advisory
- https://github.com/zephyrproject-rtos/zephyr/pull/23653Patch, Third Party Advisory
- https://github.com/zephyrproject-rtos/zephyr/pull/23654Patch, Third Party Advisory
- https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-27Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.