CVE-2023-1206Medium· 5.7▾ TwilightPoC availableA hash collision flaw was found in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when a user makes a new kind of SYN flood attack. A user located in the local network or with a high bandwidth connection can in…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 31.4 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.5%
1 GitHub repo (last check)
A hash collision flaw was found in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when a user makes a new kind of SYN flood attack. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95%.
linux_kernel < 6.5enterprise_linux = 8.0enterprise_linux = 9.0fedora = 38Upgrade past the affected range:
linux_kernel 6.5Connected by shared product, vendor, weakness, or advisory.
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