[월:] 2022년 06월

LSN-0086-1: Kernel Live Patch Security Notice It was discovered that a race condition existed in the network scheduling subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.(CVE-2021-39713) Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the Linux kernel did not properly restrict access to the cgroups v1 release_agent feature. A local attacker could use this to gain administrative privileges.(CVE-2022-0492) It was discovered that the network traffic control implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.(CVE-2022-1055) Bing-Jhong Billy Jheng discovered that the io_uring subsystem in the Linux kernel contained in integer overflow. A local attacker could use this [ more… ]

USN-5457-1: WebKitGTK vulnerabilities A large number of security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary code execution. Source: USN-5457-1: WebKitGTK vulnerabilities

USN-5443-2: Linux kernel vulnerabilities Kyle Zeng discovered that the Network Queuing and Scheduling subsystem of the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-29581) Jann Horn discovered that the Linux kernel did not properly enforce seccomp restrictions in some situations. A local attacker could use this to bypass intended seccomp sandbox restrictions. (CVE-2022-30594) Source: USN-5443-2: Linux kernel vulnerabilities

USN-5442-2: Linux kernel vulnerabilities Kyle Zeng discovered that the Network Queuing and Scheduling subsystem of the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-29581) Bing-Jhong Billy Jheng discovered that the io_uring subsystem in the Linux kernel contained in integer overflow. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1116) Jann Horn discovered that the Linux kernel did not properly enforce seccomp restrictions in some situations. A local attacker could use this to bypass intended seccomp sandbox restrictions. (CVE-2022-30594) Source: USN-5442-2: Linux kernel vulnerabilities

USN-5454-2: CUPS vulnerabilities USN-5454-1 fixed several vulnerabilities in CUPS. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: Joshua Mason discovered that CUPS incorrectly handled the secret key used to access the administrative web interface. A remote attacker could possibly use this issue to open a session as an administrator and execute arbitrary code. (CVE-2022-26691) It was discovered that CUPS incorrectly handled certain memory operations when handling IPP printing. A remote attacker could possibly use this issue to cause CUPS to crash, leading to a denial of service, or obtain sensitive information. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2019-8842, CVE-2020-10001) Source: USN-5454-2: CUPS vulnerabilities