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.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 14.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.5%
0.5% → 0.6%
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.
CVE-2021-44879Medium· 5.5In gc_data_segment in fs/f2fs/gc.c in the Linux kernel before 5.16.3, special files are not considered, leading to a move_data_page NULL pointer dereference.
CVE-2022-34918High· 7.8An issue was discovered in the Linux kernel through 5.18.9
CVE-2022-1015Medium· 6.6A flaw was found in the Linux kernel in linux/net/netfilter/nf_tables_api.c of the netfilter subsystem
CVE-2022-3524Medium· 4.3A vulnerability was found in Linux Kernel
CVE-2022-2663Medium· 5.3An issue was found in the Linux kernel in nf_conntrack_irc where the message handling can be confused and incorrectly matches the message
CVE-2021-3759Medium· 5.5A memory overflow vulnerability was found in the Linux kernel’s ipc functionality of the memcg subsystem, in the way a user calls the semget function multiple times, creating semaphores