CVE-2022-1841 Out-of-bound write in tcp_flags
An out-of-bounds write in the TCP flags handling allows attackers to cause memory corruption, potentially leading to code execution or 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-2022-1841?
CVE-2022-1841 is a high-severity memory corruption vulnerability in Zephyrproject Zephyr, published on 31 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In subsys/net/ip/tcp.c , function tcp_flags , when the incoming parameter flags is ECN or CWR , the buf will out-of-bounds write a byte zero.
Weakness: CWE-787
Which versions are affected by CVE-2022-1841?
It affects 1 product.
Products include Zephyrproject Zephyr.
How do I fix CVE-2022-1841?
No fix has been published for CVE-2022-1841 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-2022-1841 being exploited?
There is no known exploitation of CVE-2022-1841 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
Sources
Also known as GHSA-5c3j-p8cr-2pgh.