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USN-6416-2: Linux kernel vulnerabilities
Oct. 6, 2023, 1:13 p.m. |
Ubuntu security notices ubuntu.com
contained a high rate of hash collisions in connection lookup table. A
remote attacker could use this to cause a denial of service (excessive CPU
consumption). (CVE-2023-1206)
Daniël Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD
processors utilising speculative execution and branch prediction may allow
unauthorised memory reads via a speculative side-channel attack. A local
attacker could use this to expose sensitive information, including kernel
memory. (CVE-2023-20569) …
amd attacker cpu cve denial of service hash hash collisions high implementation ipv6 kernel linux linux kernel prediction processors rate service speculative execution usn vulnerabilities
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