CVE-2023-3777High· 7.8▾ TwilightA use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound a…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0.1 · exploitation 0
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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%
0.4% → 0.4%
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.
When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the chain's owner rule can also release the objects in certain circumstances.
We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8.
linux_kernel >= 5.9, < 5.10.188linux_kernel >= 5.11, < 5.15.123linux_kernel >= 5.16, < 6.1.42linux_kernel >= 6.2, < 6.4.7debian_linux = 12.0ubuntu_linux = 14.04ubuntu_linux = 16.04ubuntu_linux = 18.04ubuntu_linux = 20.04ubuntu_linux = 22.04Upgrade past the affected range:
linux_kernel 6.4.7Connected by shared product, vendor, weakness, or advisory.
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-2022-3625Medium· 4.6A vulnerability was found in Linux Kernel
CVE-2022-3586Medium· 5.5A flaw was found in the Linux kernel’s networking code
CVE-2022-2978High· 7.8A flaw use after free in the Linux kernel NILFS file system was found in the way user triggers function security_inode_alloc to fail with following call to function nilfs_mdt_destroy
CVE-2022-1184Medium· 5.5A use-after-free flaw was found in fs/ext4/namei.c:dx_insert_block() in the Linux kernel’s filesystem sub-component
CVE-2022-1882High· 7.8A use-after-free flaw was found in the Linux kernel’s pipes functionality in how a user performs manipulations with the pipe post_one_notification() after free_pipe_info() that is already called