Description
In the TCP implementation (gnrc_tcp) in RIOT through 2019.07, the parser for TCP options does not terminate on all inputs, allowing a denial-of-service, because sys/net/gnrc/transport_layer/tcp/gnrc_tcp_option.c has an infinite loop for an unknown zero-length option.
References (1)
Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://github.com/RIOT-OS/RIOT/issues/12086
Scores
CVSS v3
7.5
EPSS
0.0033
EPSS Percentile
56.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-835
Status
published
Products (1)
riot-os/riot
< 2019.07
Published
Aug 27, 2019
Tracked Since
Feb 18, 2026