CVE-2024-32017 Buffer overflows in RIOT
Buffer overflows in RIOT OS allow attackers to cause denial of service or execute arbitrary code via crafted CoAP messages.
- 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-2024-32017?
CVE-2024-32017 is a critical memory corruption vulnerability in RIOT-OS RIOT, published on 1 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
RIOT is a real-time multi-threading operating system that supports a range of devices that are typically 8-bit, 16-bit and 32-bit microcontrollers. The size check in the `gcoap_dns_server_proxy_get()` function contains a small typo that may lead to a buffer overflow in the subsequent `strcpy()`. In detail, the length of the `_uri` string is checked instead of the length of the `_proxy` string. The `_gcoap_forward_proxy_copy_options()` function does not implement an explicit size check before copying data to the `cep->req_etag` buffer that is `COAP_ETAG_LENGTH_MAX` bytes long. If an attacker can craft input so that `optlen` becomes larger than `COAP_ETAG_LENGTH_MAX`, they can cause a buffer overflow. If the input above is attacker-controlled and crosses a security boundary, the impact of the buffer overflow vulnerabilities could range from denial of service to arbitrary code execution. This issue has yet to be patched. Users are advised to add manual bounds checking.
Weakness: CWE-120
Which versions are affected by CVE-2024-32017?
It affects 1 product.
Products include Riot-Os Riot.
How do I fix CVE-2024-32017?
No fix has been published for CVE-2024-32017 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-2024-32017 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-32017 exists.
Other vulnerabilities in RIOT-OS RIOT
Sources
Also known as GHSA-v97j-w9m6-c4h3.