USN-5727-1
Vulnerability Summary
Timeline
Description
linux, linux-aws, linux-aws-hwe, linux-dell300x, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities It was discovered that a race condition existed in the instruction emulator of the Linux kernel on Arm 64-bit systems. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-20422) It was discovered that the KVM implementation in the Linux kernel did not properly handle virtual CPUs without APICs in certain situations. A local attacker could possibly use this to cause a denial of service (host system crash). (CVE-2022-2153) Hao Sun and Jiacheng Xu discovered that the NILFS file system 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-2022-2978) Abhishek Shah discovered a race condition in the PF_KEYv2 implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2022-3028) It was discovered that the IDT 77252 ATM PCI device driver in the Linux kernel did not properly remove any pending timers during device exit, resulting in a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-3635) It was discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-36879) Xingyuan Mo and Gengjia Chen discovered that the Promise SuperTrak EX storage controller driver in the Linux kernel did not properly handle certain structures. A local attacker could potentially use this to expose sensitive information (kernel memory). (CVE-2022-40768)
Affected Systems
- ubuntu•linux
< 4.15.0-197.208
- ubuntu•linux-aws
< 4.15.0-1143.155
- ubuntu•linux-aws-hwe
< 4.15.0-1143.155~16.04.1
- ubuntu•linux-dell300x
< 4.15.0-1055.60
- ubuntu•linux-hwe
< 4.15.0-197.208~16.04.1
- ubuntu•linux-kvm
< 4.15.0-1129.134
- ubuntu•linux-oracle
< 4.15.0-1108.119~16.04.1 | < 4.15.0-1108.119
- ubuntu•linux-raspi2
< 4.15.0-1121.129
- ubuntu•linux-snapdragon
< 4.15.0-1139.149
References (8)
- https://ubuntu.com/security/notices/USN-5727-1
- https://ubuntu.com/security/CVE-2022-2153
- https://ubuntu.com/security/CVE-2022-2978
- https://ubuntu.com/security/CVE-2022-3028
- https://ubuntu.com/security/CVE-2022-3635
- https://ubuntu.com/security/CVE-2022-20422
- https://ubuntu.com/security/CVE-2022-36879
- https://ubuntu.com/security/CVE-2022-40768