CVE-2024-1086

CVE Published 2024-01-31
Related CWE(s) CWE-416: Use After Free
Related Vendor(s) fedoraproject, linux, redhat
Related Product(s) enterprise_linux_for_ibm_z_systems, enterprise_linux_workstation, enterprise_linux_for_power_big_endian, enterprise_linux_for_power_little_endian, fedora, enterprise_linux_server, linux_kernel, enterprise_linux_desktop
Exploitation Reported (CISA KEV) 2024-05-30
CVSS 3 Base Score 7.8 (HIGH)
CVSS 3 Attack Complexity LOW
CVSS 3 Attack Vector LOCAL

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.

The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT.

We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.

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References