Articles by KENNETH

USN-6219-1: Ruby vulnerabilities It was discovered that Ruby incorrectly handled certain regular expressions. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.10 and Ubuntu 20.04 LTS. (CVE-2023-28755) It was discovered that Ruby incorrectly handled certain regular expressions. An attacker could possibly use this issue to cause a denial of service. This issue exists because of an incomplete fix for CVE-2023-28755. (CVE-2023-36617) Source: USN-6219-1: Ruby vulnerabilities

USN-6220-1: Linux kernel vulnerabilities Hangyu Hua discovered that the Flower classifier implementation in the Linux kernel contained an out-of-bounds write vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-35788, LP: #2023577) It was discovered that for some Intel processors the INVLPG instruction implementation did not properly flush global TLB entries when PCIDs are enabled. An attacker could use this to expose sensitive information (kernel memory) or possibly cause undesired behaviors. (LP: #2023220) Source: USN-6220-1: Linux kernel vulnerabilities

USN-6218-1: Firefox vulnerability A use-after-free was discovered in Firefox when handling workers. An attacker could potentially exploit this to cause a denial of service, or execute arbitrary code. Source: USN-6218-1: Firefox vulnerability