CVE-2023-30546 Contiki-NG has off-by-one error in Antelope DBMS
An off-by-one error in Contiki-NG's Antelope DBMS allows out-of-bounds memory access, potentially leading to code execution or crashes.
- 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-2023-30546?
CVE-2023-30546 is a critical vulnerability in contiki-ng, published on 26 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Contiki-NG is an operating system for Internet of Things devices. An off-by-one error can be triggered in the Antelope database management system in the Contiki-NG operating system in versions 4.8 and prior. The problem exists in the Contiki File System (CFS) backend for the storage of data (file os/storage/antelope/storage-cfs.c). In the functions `storage_get_index` and `storage_put_index`, a buffer for merging two strings is allocated with one byte less than the maximum size of the merged strings, causing subsequent function calls to the cfs_open function to read from memory beyond the buffer size. The vulnerability has been patched in the "develop" branch of Contiki-NG, and is expected to be included in the next release. As a workaround, the problem can be fixed by applying the patch in Contiki-NG pull request #2425.
Which versions are affected by CVE-2023-30546?
It affects 1 product.
Products include Contiki-Ng Contiki-Ng.
How do I fix CVE-2023-30546?
No fix has been published for CVE-2023-30546 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-30546 being exploited?
There is no known exploitation of CVE-2023-30546 in the wild and no public exploit code.
Other vulnerabilities in contiki-ng
Sources
Also known as GHSA-257g-w39m-5jj4.