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CISA ແຈ້ງເຕືອນຊ່ອງໂຫວ່ລະດັບຄວາມຮຸນແຮງສູງເທິງ Linux ກຳລັງຖືກໃຊ້ໃນການໂຈມຕີຈາກກຸ່ມ Ransomware

Linux kernel · CVE-2024-1086
0 news outlets1 CERTs and agencies0 researchers

What is it?

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.

Evidence

CERTs and agencies (1)

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
7.8
EPSS
28.1%
First seen
6 h ago
Status
confirmed

All Linux vulnerabilities