Ubuntu 6534-3: Linux kernel vulnerabilities
Summary
A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-hwe-6.2: Linux hardware enablement (HWE) kernel - linux-lowlatency-hwe-6.2: Linux low latency kernel - linux-nvidia-6.2: Linux kernel for NVIDIA systems Details: It was discovered that the USB subsystem in the Linux kernel contained a race condition while handling device descriptors in certain situations, leading to a out-of-bounds read vulnerability. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-37453) Lin Ma discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel did not properly initialize a policy data structure, leading to an out-of-bounds vulnerability. A local privileged attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2023-3773) Lucas Leong discovered that the netfilter subsystem in the Linux kernel did not properly validate some attributes passed from userspace. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2023-39189) Sunjoo Park discovered that the netfilter subsystem in the Linux kernel did not properly validate u32 packets content, leading to an out-of-bounds read vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-39192) Lucas Leong discovered that the netfilter subsystem in the Linux kernel did not properly validate SCTP data, leading to an out-of-bounds read vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-39193) Lucas Leong discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel did not properly handle state filters, leading to an out- of-bounds read vulnerability. A privileged local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-39194) It was discovered that a race condition existed in QXL virtual GPU driver in 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-2023-39198) Kyle Zeng discovered that the IPv4 implementation in the Linux kernel did not properly handle socket buffers (skb) when performing IP routing in certain circumstances, leading to a null pointer dereference vulnerability. A privileged attacker could use this to cause a denial of service (system crash). (CVE-2023-42754) Jason Wang discovered that the virtio ring implementation in the Linux kernel did not properly handle iov buffers in some situations. A local attacker in a guest VM could use this to cause a denial of service (host system crash). (CVE-2023-5158) Alon Zahavi discovered that the NVMe-oF/TCP subsystem in the Linux kernel did not properly handle queue initialization failures in certain situations, leading to a use-after-free vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5178) Budimir Markovic discovered that the perf subsystem in the Linux kernel did not properly handle event groups, leading to an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-5717) It was discovered that the Microchip USB Ethernet driver in the Linux kernel contained a race condition during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2023-6039)
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS: linux-image-6.2.0-1013-nvidia 6.2.0-1013.13+1 linux-image-6.2.0-1013-nvidia-64k 6.2.0-1013.13+1 linux-image-6.2.0-1018-lowlatency 6.2.0-1018.18~22.04.1 linux-image-6.2.0-1018-lowlatency-64k 6.2.0-1018.18~22.04.1 linux-image-6.2.0-39-generic 6.2.0-39.40~22.04.1 linux-image-6.2.0-39-generic-64k 6.2.0-39.40~22.04.1 linux-image-6.2.0-39-generic-lpae 6.2.0-39.40~22.04.1 linux-image-generic-64k-hwe-22.04 6.2.0.39.40~22.04.16 linux-image-generic-hwe-22.04 6.2.0.39.40~22.04.16 linux-image-generic-lpae-hwe-22.04 6.2.0.39.40~22.04.16 linux-image-lowlatency-64k-hwe-22.04 6.2.0.1018.18~22.04.15 linux-image-lowlatency-hwe-22.04 6.2.0.1018.18~22.04.15 linux-image-nvidia-6.2 6.2.0.1013.15 linux-image-nvidia-64k-6.2 6.2.0.1013.15 linux-image-nvidia-64k-hwe-22.04 6.2.0.1013.15 linux-image-nvidia-hwe-22.04 6.2.0.1013.15 linux-image-virtual-hwe-22.04 6.2.0.39.40~22.04.16 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.
References
https://ubuntu.com/security/notices/USN-6534-3
https://ubuntu.com/security/notices/USN-6534-1
CVE-2023-37453, CVE-2023-3773, CVE-2023-39189, CVE-2023-39192,
CVE-2023-39193, CVE-2023-39194, CVE-2023-39198, CVE-2023-42754,
CVE-2023-5158, CVE-2023-5178, CVE-2023-5717, CVE-2023-6039
Package Information
https://launchpad.net/ubuntu/+source/linux-hwe-6.2/6.2.0-39.40~22.04.1 https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-6.2/6.2.0-1018.18~22.04.1 https://launchpad.net/ubuntu/+source/linux-nvidia-6.2/6.2.0-1013.13
