CVE-2022-42432

Severity: medium (CVSS 4.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-03-29 · updated 2026-10-14
Weakness: CWE-457

Description

This vulnerability allows local attackers to disclose sensitive information on affected installations of the Linux Kernel 6.0-rc2. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the nft_osf_eval function. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the kernel. Was ZDI-CAN-18540.

Affected products

Linux kernel: 6.0-rc2

References

https://patchwork.ozlabs.org/project/netfilter-devel/patch/20220907082618.1193201-1-pablo%40netfilter.org/
https://www.zerodayinitiative.com/advisories/ZDI-22-1457/
https://patchwork.ozlabs.org/project/netfilter-devel/patch/20220907082618.1193201-1-pablo%40netfilter.org/
https://www.zerodayinitiative.com/advisories/ZDI-22-1457/
https://cert-portal.siemens.com/productcert/html/ssa-794697.html

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