Unrated severityNVD Advisory· Published May 30, 2023· Updated Jan 10, 2025
RIOT-OS vulnerable to NULL pointer dereference during NHC encoding
CVE-2023-33973
Description
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.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
8- github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.cmitrex_refsource_MISC
- github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.cmitrex_refsource_MISC
- github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.cmitrex_refsource_MISC
- github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.cmitrex_refsource_MISC
- github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.cmitrex_refsource_MISC
- github.com/RIOT-OS/RIOT/commit/c9d7863e5664a169035038628029bb07e090c5ffmitrex_refsource_MISC
- github.com/RIOT-OS/RIOT/pull/19678mitrex_refsource_MISC
- github.com/RIOT-OS/RIOT/security/advisories/GHSA-r2pv-3jqc-vh7wmitrex_refsource_CONFIRM
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