CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HIn the Linux kernel, the following vulnerability has been resolved: netfilter: reject zero shift in nft_bitwise Reject zero shift operands for nft_bitwise left and right shift expressions during initialization. The carry propagation logic computes the carry from the adjacent 32-bit word using BITS_PER_TYPE(u32) - shift. A zero shift operand turns this into a 32-bit shift, which is undefined behaviour. Reject zero shift operands in the control plane, alongside the existing check for values greater than or equal to 32, so malformed rules never reach the packet path. A flaw was found in the Linux kernel's Netfilter subsystem. Specifically, the `nft_bitwise` expression incorrectly handles zero shift operands during initialization. This can lead to undefined behavior within the kernel, potentially causing system instability. An attacker could exploit this by crafting malformed Netfilter rules, preventing the system from processing network packets correctly.
Multiple vulnerabilities have been discovered in the Linux kernel of Ubuntu. Some of these vulnerabilities allow for privilege escalation, data confidentiality compromise, and data integrity compromise. These vulnerabili…
Multiple vulnerabilities have been discovered in the Linux kernel of Ubuntu. Several of these vulnerabilities allow for privilege escalation, data confidentiality breaches, and a security issue not specified by the publi…
Multiple vulnerabilities have been discovered in the Linux kernel of Ubuntu. Some of these vulnerabilities allow for privilege escalation, data confidentiality breaches, and data integrity compromise. These vulnerabiliti…
Multiple vulnerabilities have been discovered in the SUSE Linux kernel. Several of these vulnerabilities can lead to data confidentiality and integrity breaches, as well as the circumvention of security policies and deni…
Multiple vulnerabilities have been discovered in the SUSE Linux kernel. Some of these vulnerabilities allow for data confidentiality and integrity breaches, as well as bypassing security policies and causing denial of se…
Multiple vulnerabilities have been discovered in the Linux kernel of Ubuntu. Some of these vulnerabilities allow for privilege escalation, data confidentiality breaches, and denial of service attacks. The vulnerabilities…