CVE-2022-2503Medium· 6.9▾ TwilightPoC availableDm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently allow users with root privile…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 38 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
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
0.4%
Exploit / PoC code exists
0.4% → 0.4%
Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates. We recommend upgrading past commit 4caae58406f8ceb741603eee460d79bacca9b1b5
linux_kernel < 5.19Upgrade past the affected range:
linux_kernel 5.19Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2022-2959High· 7.0A race condition was found in the Linux kernel's watch queue due to a missing lock in pipe_resize_ring()
CVE-2022-34918High· 7.8An issue was discovered in the Linux kernel through 5.18.9
CVE-2022-32250High· 7.8net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free.
CVE-2022-3635Medium· 5.5A vulnerability, which was classified as critical, has been found in Linux Kernel
CVE-2022-3564Medium· 5.5A vulnerability classified as critical was found in Linux Kernel
CVE-2022-3303Medium· 4.7A race condition flaw was found in the Linux kernel sound subsystem due to improper locking