Ubuntu security

USN-5366-1: FriBidi vulnerabilities It was discovered that FriBidi incorrectly handled processing of input strings resulting in memory corruption. An attacker could use this issue to cause FriBidi to crash, resulting in a denial of service, or potentially execute arbitrary code. (CVE-2022-25308) It was discovered that FriBidi incorrectly validated input data to its CapRTL unicode encoder, resulting in memory corruption. An attacker could use this issue to cause FriBidi to crash, resulting in a denial of service, or potentially execute arbitrary code. (CVE-2022-25309) It was discovered that FriBidi incorrectly handled empty input when removing marks from unicode strings, resulting in a crash. An attacker could use this to cause FriBidi to crash, resulting in a denial of service, or potentially execute arbitrary code. (CVE-2022-25310) Source: USN-5366-1: FriBidi vulnerabilities

USN-5368-1: Linux kernel vulnerabilities It was discovered that the BPF verifier in the Linux kernel did not properly restrict pointer types in certain situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-23222) 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) 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) Jürgen Groß discovered that the Xen subsystem within the Linux kernel did not adequately limit the number of events driver domains (unprivileged PV [ more… ]

USN-5365-1: H2 vulnerabilities It was discovered that H2 was vulnerable to deserialization of untrusted data. An attacker could possibly use this issue to execute arbitrary code. (CVE-2021-42392) It was discovered that H2 incorrectly handled some specially crafted connection URLs. An attacker could possibly use this issue to execute arbitrary code. (CVE-2022-23221) Source: USN-5365-1: H2 vulnerabilities

USN-5364-1: Waitress vulnerability It was discovered that Waitress incorrectly handled certain requests. An attacker could possibly use this issue to expose sensitive information. Source: USN-5364-1: Waitress vulnerability

USN-5362-1: Linux kernel (Intel IOTG) vulnerabilities Nick Gregory discovered that the Linux kernel incorrectly handled network offload functionality. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2022-25636) Enrico Barberis, Pietro Frigo, Marius Muench, Herbert Bos, and Cristiano Giuffrida discovered that hardware mitigations added by ARM to their processors to address Spectre-BTI were insufficient. A local attacker could potentially use this to expose sensitive information. (CVE-2022-23960) It was discovered that the BPF verifier in the Linux kernel did not properly restrict pointer types in certain situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-23222) Max Kellermann discovered that the Linux kernel incorrectly handled Unix pipes. A local attacker could potentially use this to modify any file that could be opened [ more… ]