OESA-2024-1097

Dashboard / Vulnerabilities / OESA-2024-1097

OESA-2024-1097

Summary: kernel security update

Details: The Linux Kernel, the operating system core itself. Security Fix(es): An out-of-bounds access vulnerability involving netfilter was reported and fixed as: f1082dd31fe4 (netfilter: nf_tables: Reject tables of unsupported family); While creating a new netfilter table, lack of a safeguard against invalid nf_tables family (pf) values within `nf_tables_newtable` function enables an attacker to achieve out-of-bounds access.(CVE-2023-6040) An out-of-bounds memory read flaw was found in receive_encrypted_standard in fs/smb/client/smb2ops.c in the SMB Client sub-component in the Linux Kernel. This issue occurs due to integer underflow on the memcpy length, leading to a denial of service.(CVE-2024-0565) A flaw was found in the Netfilter subsystem in the Linux kernel. The issue is in the nft_byteorder_eval() function, where the code iterates through a loop and writes to the `dst` array. On each iteration, 8 bytes are written, but `dst` is an array of u32, so each element only has space for 4 bytes. That means every iteration overwrites part of the previous element corrupting this array of u32. This flaw allows a local user to cause a denial of service or potentially break NetFilter functionality.(CVE-2024-0607)

References: https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1097, https://nvd.nist.gov/vuln/detail/CVE-2023-6040, https://nvd.nist.gov/vuln/detail/CVE-2024-0565, https://nvd.nist.gov/vuln/detail/CVE-2024-0607