Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 44.5%
CVSS Severity
CVSS v3 Score 7.5
References
- https://github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c#L1067
- https://github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c#L1495
- https://github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c#L1511
- https://github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c#L1644
- https://github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c#L1655
- https://github.com/RIOT-OS/RIOT/commit/c9d7863e5664a169035038628029bb07e090c5ff
- https://github.com/RIOT-OS/RIOT/pull/19678
- https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-r2pv-3jqc-vh7w
- https://github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c#L1067
- https://github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c#L1495
- https://github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c#L1511
- https://github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c#L1644
- https://github.com/RIOT-OS/RIOT/blob/f41b4b67b6affca0a8b32edced7f51088696869a/sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c#L1655
- https://github.com/RIOT-OS/RIOT/commit/c9d7863e5664a169035038628029bb07e090c5ff
- https://github.com/RIOT-OS/RIOT/pull/19678
- https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-r2pv-3jqc-vh7w
Products affected by CVE-2023-33973
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cpe:2.3:o:riot-os:riot:2013.08
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cpe:2.3:o:riot-os:riot:2014.01
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cpe:2.3:o:riot-os:riot:2014.05
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cpe:2.3:o:riot-os:riot:2014.12
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cpe:2.3:o:riot-os:riot:2015.09
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cpe:2.3:o:riot-os:riot:2015.12
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cpe:2.3:o:riot-os:riot:2016.04
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cpe:2.3:o:riot-os:riot:2016.07
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cpe:2.3:o:riot-os:riot:2016.10
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cpe:2.3:o:riot-os:riot:2017.01
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cpe:2.3:o:riot-os:riot:2017.04
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cpe:2.3:o:riot-os:riot:2017.07
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cpe:2.3:o:riot-os:riot:2017.10
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cpe:2.3:o:riot-os:riot:2018.01
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cpe:2.3:o:riot-os:riot:2018.04
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cpe:2.3:o:riot-os:riot:2018.07
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cpe:2.3:o:riot-os:riot:2018.10
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cpe:2.3:o:riot-os:riot:2018.10.1
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cpe:2.3:o:riot-os:riot:2019.01
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cpe:2.3:o:riot-os:riot:2019.04
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cpe:2.3:o:riot-os:riot:2019.07
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cpe:2.3:o:riot-os:riot:2019.10
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cpe:2.3:o:riot-os:riot:2020.01
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cpe:2.3:o:riot-os:riot:2020.01.1
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cpe:2.3:o:riot-os:riot:2020.04
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cpe:2.3:o:riot-os:riot:2021.01
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cpe:2.3:o:riot-os:riot:2021.04
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cpe:2.3:o:riot-os:riot:2021.07
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cpe:2.3:o:riot-os:riot:2021.10
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cpe:2.3:o:riot-os:riot:2022.01
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cpe:2.3:o:riot-os:riot:2022.04
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cpe:2.3:o:riot-os:riot:2022.07
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cpe:2.3:o:riot-os:riot:2022.10
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cpe:2.3:o:riot-os:riot:2023.01