Ubuntu security

USN-5671-1: AdvanceCOMP vulnerabilities It was discovered that AdvanceCOMP did not properly manage memory of function be_uint32_read() under certain circumstances. If a user were tricked into opening a specially crafted binary file, a remote attacker could possibly use this issue to cause AdvanceCOMP to crash, resulting in a denial of service. (CVE-2019-8379) It was discovered that AdvanceCOMP did not properly manage memory of function adv_png_unfilter_8() under certain circumstances. If a user were tricked into opening a specially crafted PNG file, a remote attacker could possibly use this issue to cause AdvanceCOMP to crash, resulting in a denial of service. (CVE-2019-8383) Source: USN-5671-1: AdvanceCOMP vulnerabilities

USN-5670-1: .NET 6 vulnerability Edward Thomson discovered that .NET 6 incorrectly handled permissions for local NuGet cache. A local attacker could possibly use this issue to execute arbitrary code. Source: USN-5670-1: .NET 6 vulnerability

USN-5669-2: Linux kernel vulnerabilities It was discovered that the SUNRPC RDMA protocol implementation in the Linux kernel did not properly calculate the header size of a RPC message payload. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-0812) Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation in the Linux kernel did not provide sufficient randomization when calculating port offsets. An attacker could possibly use this to expose sensitive information. (CVE-2022-1012, CVE-2022-32296) Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel’s Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318) Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be [ more… ]

USN-5669-1: Linux kernel vulnerabilities It was discovered that the SUNRPC RDMA protocol implementation in the Linux kernel did not properly calculate the header size of a RPC message payload. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-0812) Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation in the Linux kernel did not provide sufficient randomization when calculating port offsets. An attacker could possibly use this to expose sensitive information. (CVE-2022-1012, CVE-2022-32296) Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel’s Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318) Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be [ more… ]

USN-5668-1: Linux kernel vulnerabilities It was discovered that the BPF verifier in the Linux kernel did not properly handle internal data structures. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-4159) It was discovered that an out-of-bounds write vulnerability existed in the Video for Linux 2 (V4L2) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-20369) Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel’s Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318) 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 [ more… ]