Ubuntu security

USN-5572-2: Linux kernel (AWS) vulnerabilities Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365) Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740) It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741) Source: USN-5572-2: Linux kernel (AWS) vulnerabilities

USN-5585-1: Jupyter Notebook vulnerabilities It was discovered that Jupyter Notebook incorrectly handled certain notebooks. An attacker could possibly use this issue of lack of Content Security Policy in Nbconvert to perform cross-site scripting (XSS) attacks on the notebook server. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-19351) It was discovered that Jupyter Notebook incorrectly handled certain SVG documents. An attacker could possibly use this issue to perform cross-site scripting (XSS) attacks. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-21030) It was discovered that Jupyter Notebook incorrectly filtered certain URLs on the login page. An attacker could possibly use this issue to perform open-redirect attack. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-10255) It was discovered that Jupyter Notebook had an incomplete fix for CVE-2019-10255. An attacker could possibly use this issue to perform open-redirect attack using empty netloc. (CVE-2019-10856) It [ more… ]

USN-5586-1: SDL vulnerability It was discovered that SDL (Simple DirectMedia Layer) incorrectly handled memory. An attacker could potentially use this issue to cause a denial of service or other unexpected behavior. Source: USN-5586-1: SDL vulnerability

USN-5584-1: Schroot vulnerability It was discovered that Schroot incorrectly handled certain Schroot names. An attacker could possibly use this issue to break schroot’s internal state causing a denial of service. Source: USN-5584-1: Schroot vulnerability

USN-5583-1: systemd vulnerability It was discovered that systemd incorrectly handled certain DNS requests, which leads to user-after-free vulnerability. An attacker could possibly use this issue to cause a crash or execute arbitrary code. (CVE-2022-2526) Source: USN-5583-1: systemd vulnerability