CVE-2020-13601 Possible read out of bounds in dns read
An out-of-bounds read in the DNS module allows attackers to read sensitive memory or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-13601?
CVE-2020-13601 is a critical memory corruption vulnerability in Zephyrproject Zephyr, published on 24 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Possible read out of bounds in dns read. Zephyr versions >= 1.14.2, >= 2.3.0 contain Out-of-bounds Read (CWE-125). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-mm57-9hqw-qh44
Weakness: CWE-125
Which versions are affected by CVE-2020-13601?
It affects 1 product.
Products include Zephyrproject Zephyr.
How do I fix CVE-2020-13601?
No fix has been published for CVE-2020-13601 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-13601 being exploited?
There is no known exploitation of CVE-2020-13601 in the wild and no public exploit code.
Other vulnerabilities in Zephyrproject Zephyr
- CVE-2026-5067 Out-of-bounds read/write in HTTP WebSocket upgrade via non-null-terminated Sec-WebSocket-Key
- CVE-2022-3806 Bluetooth HCI Error Handling Double Free
- CVE-2017-14199 Memory corruption in getaddrinfo
- CVE-2018-1000800 Null dereference in n/a
- CVE-2021-3329 DOS: Incorrect handling of the initial HCI ACL_MTU handshake packet leads to crash of bluetooth host layer