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AlienVault OTX Vulnerabilities

AlienVault OTX Malware

A use-after-free flaw was found in the Linux kernel's netfilter in the way a user triggers the nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local user to crash the system or potentially escalate their privileges on the system.

CVE-2023-4004 is a use-after-free vulnerability identified in the netfilter component of the Linux kernel as implemented in Red Hat Enterprise Linux 8. The flaw occurs specifically in the nft_pipapo_remove function, which handles removal operations within nftables sets. The vulnerability is triggered when this function is called with an element that lacks the NFT_SET_EXT_KEY_END flag, leading to a use-after-free condition. This memory corruption can be exploited by a local user with limited privileges to cause a kernel crash, resulting in denial of service, or potentially escalate privileges by executing arbitrary code in kernel context. The vulnerability does not require user interaction but does require local access with at least some privileges (PR:L). The CVSS v3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability, with low attack complexity and no user interaction needed. Although no public exploits are currently known, the nature of the vulnerability and its presence in a widely used enterprise Linux distribution make it a significant risk. The flaw affects the core networking firewall functionality, which is critical for system security and stability. Red Hat has published advisories and is expected to release patches to address this issue. Until patched, systems remain vulnerable to local privilege escalation and denial of service attacks.

Detailed information about CVE-2023-4004: Use After Free in Red Hat Red Hat Enterprise Linux 8 affecting Red Hat Red Hat Enterprise Linux 8. Get real-time updat

CVE-2023-4004: Use After Free in Red Hat Red Hat Enterprise Linux 8 - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2023-4004: Use After Free in Red Hat Red Hat Enterprise Linux 8

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