NULL pointer dereference in Riot-Os Riot
CVE-2023-33973
RIOT-OS, an operating system for Internet of Things (IoT) devices, contains a network stack with the ability to process 6LoWPAN frames. In versions 2023.01 and prior, an attacker can send a crafted frame which is forwarded by the device. During encoding of the packet a NULL pointer dereference occurs. This crashes the device leading to denial of service. A patch is available at pull request 19678. There are no known workarounds.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.010 (60.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Riot-Os Riot — versions <= 2023.01
Weakness classification (CWE)
References
- github.com/RIOT-OS/RIOT/security/advisories/GHSA-r2pv-3jqc-vh7w (Vendor Advisory)
- github.com/RIOT-OS/RIOT/pull/19678 (Patch, Issue Tracking)
- github.com/RIOT-OS/RIOT/commit/c9d7863e5664a169035038628029bb07e090c5ff (Patch)
- github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/g… (Product)
- github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/g… (Product)
- github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/g… (Product)
- github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/g… (Product)
- github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/g… (Product)
Frequently asked questions
- What is CVE-2023-33973?
- CVE-2023-33973 is a high-severity vulnerability in Riot-Os Riot, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2023-05-30.
- How severe is CVE-2023-33973?
- High severity. CVSS v3 base score is 7.5 out of 10.