High severity · published May 11, 2020
CVE-2020-10019
USB DFU has a potential buffer overflow where the requested length (wLength) is not checked against the buffer size
7.8
CVSS
0.5%
EPSS
No
On KEV
Description
USB DFU has a potential buffer overflow where the requested length (wLength) is not checked against the buffer size. This could be used by a malicious USB host to exploit the buffer overflow. See NCC-ZEP-002 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ZE
Zephyr · Zephyrproject
before 1.14.2; 2.0.0 through 2.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-10019
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-10019
docs.zephyrproject.org
https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10019
Patch
https://github.com/zephyrproject-rtos/zephyr/pull/23190
Patch
https://github.com/zephyrproject-rtos/zephyr/pull/23457
Patch
https://github.com/zephyrproject-rtos/zephyr/pull/23460
Third Party Advisory
https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-25
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