An update for kernel is now available for openEuler-20.03-LTS-SP1 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2024-1281 Final 1.0 1.0 2024-03-15 Initial 2024-03-15 2024-03-15 openEuler SA Tool V1.0 2024-03-15 kernel security update An update for kernel is now available for openEuler-20.03-LTS-SP1. The Linux Kernel, the operating system core itself. Security Fix(es): In the Linux kernel, the following vulnerability has been resolved: uio: Fix use-after-free in uio_open core-1 core-2 ------------------------------------------------------- uio_unregister_device uio_open idev = idr_find() device_unregister(&idev->dev) put_device(&idev->dev) uio_device_release get_device(&idev->dev) kfree(idev) uio_free_minor(minor) uio_release put_device(&idev->dev) kfree(idev) ------------------------------------------------------- In the core-1 uio_unregister_device(), the device_unregister will kfree idev when the idev->dev kobject ref is 1. But after core-1 device_unregister, put_device and before doing kfree, the core-2 may get_device. Then: 1. After core-1 kfree idev, the core-2 will do use-after-free for idev. 2. When core-2 do uio_release and put_device, the idev will be double freed. To address this issue, we can get idev atomic & inc idev reference with minor_lock.(CVE-2023-52439) A vulnerability was reported in the Open vSwitch sub-component in the Linux Kernel. The flaw occurs when a recursive operation of code push recursively calls into the code block. The OVS module does not validate the stack depth, pushing too many frames and causing a stack overflow. As a result, this can lead to a crash or other related issues.(CVE-2024-1151) NULL Pointer Dereference vulnerability in Linux Linux kernel kernel on Linux, x86, ARM (net, bluetooth modules) allows Overflow Buffers. This vulnerability is associated with program files /net/bluetooth/rfcomm/core.C. This issue affects Linux kernel: v2.6.12-rc2. (CVE-2024-22099) An update for kernel is now available for openEuler-20.03-LTS-SP1. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High kernel https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1281 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2023-52439 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2024-1151 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2024-22099 https://nvd.nist.gov/vuln/detail/CVE-2023-52439 https://nvd.nist.gov/vuln/detail/CVE-2024-1151 https://nvd.nist.gov/vuln/detail/CVE-2024-22099 openEuler-20.03-LTS-SP1 kernel-source-4.19.90-2403.2.0.0242.oe1.aarch64.rpm python3-perf-debuginfo-4.19.90-2403.2.0.0242.oe1.aarch64.rpm kernel-devel-4.19.90-2403.2.0.0242.oe1.aarch64.rpm python2-perf-4.19.90-2403.2.0.0242.oe1.aarch64.rpm kernel-debugsource-4.19.90-2403.2.0.0242.oe1.aarch64.rpm python2-perf-debuginfo-4.19.90-2403.2.0.0242.oe1.aarch64.rpm perf-debuginfo-4.19.90-2403.2.0.0242.oe1.aarch64.rpm python3-perf-4.19.90-2403.2.0.0242.oe1.aarch64.rpm kernel-4.19.90-2403.2.0.0242.oe1.aarch64.rpm kernel-tools-4.19.90-2403.2.0.0242.oe1.aarch64.rpm perf-4.19.90-2403.2.0.0242.oe1.aarch64.rpm kernel-tools-devel-4.19.90-2403.2.0.0242.oe1.aarch64.rpm kernel-tools-debuginfo-4.19.90-2403.2.0.0242.oe1.aarch64.rpm bpftool-debuginfo-4.19.90-2403.2.0.0242.oe1.aarch64.rpm kernel-debuginfo-4.19.90-2403.2.0.0242.oe1.aarch64.rpm bpftool-4.19.90-2403.2.0.0242.oe1.aarch64.rpm kernel-4.19.90-2403.2.0.0242.oe1.src.rpm kernel-debuginfo-4.19.90-2403.2.0.0242.oe1.x86_64.rpm kernel-debugsource-4.19.90-2403.2.0.0242.oe1.x86_64.rpm bpftool-debuginfo-4.19.90-2403.2.0.0242.oe1.x86_64.rpm perf-debuginfo-4.19.90-2403.2.0.0242.oe1.x86_64.rpm kernel-devel-4.19.90-2403.2.0.0242.oe1.x86_64.rpm python2-perf-4.19.90-2403.2.0.0242.oe1.x86_64.rpm bpftool-4.19.90-2403.2.0.0242.oe1.x86_64.rpm python3-perf-debuginfo-4.19.90-2403.2.0.0242.oe1.x86_64.rpm kernel-source-4.19.90-2403.2.0.0242.oe1.x86_64.rpm kernel-4.19.90-2403.2.0.0242.oe1.x86_64.rpm python2-perf-debuginfo-4.19.90-2403.2.0.0242.oe1.x86_64.rpm kernel-tools-4.19.90-2403.2.0.0242.oe1.x86_64.rpm kernel-tools-devel-4.19.90-2403.2.0.0242.oe1.x86_64.rpm python3-perf-4.19.90-2403.2.0.0242.oe1.x86_64.rpm kernel-tools-debuginfo-4.19.90-2403.2.0.0242.oe1.x86_64.rpm perf-4.19.90-2403.2.0.0242.oe1.x86_64.rpm In the Linux kernel, the following vulnerability has been resolved: uio: Fix use-after-free in uio_open core-1 core-2 ------------------------------------------------------- uio_unregister_device uio_open idev = idr_find() device_unregister(&idev->dev) put_device(&idev->dev) uio_device_release get_device(&idev->dev) kfree(idev) uio_free_minor(minor) uio_release put_device(&idev->dev) kfree(idev) ------------------------------------------------------- In the core-1 uio_unregister_device(), the device_unregister will kfree idev when the idev->dev kobject ref is 1. But after core-1 device_unregister, put_device and before doing kfree, the core-2 may get_device. Then: 1. After core-1 kfree idev, the core-2 will do use-after-free for idev. 2. When core-2 do uio_release and put_device, the idev will be double freed. To address this issue, we can get idev atomic & inc idev reference with minor_lock. 2024-03-15 CVE-2023-52439 openEuler-20.03-LTS-SP1 High 7.0 AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H kernel security update 2024-03-15 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1281 A vulnerability was reported in the Open vSwitch sub-component in the Linux Kernel. The flaw occurs when a recursive operation of code push recursively calls into the code block. The OVS module does not validate the stack depth, pushing too many frames and causing a stack overflow. As a result, this can lead to a crash or other related issues. 2024-03-15 CVE-2024-1151 openEuler-20.03-LTS-SP1 Medium 5.5 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H kernel security update 2024-03-15 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1281 NULL Pointer Dereference vulnerability in Linux Linux kernel kernel on Linux, x86, ARM (net, bluetooth modules) allows Overflow Buffers. This vulnerability is associated with program files /net/bluetooth/rfcomm/core.C.This issue affects Linux kernel: v2.6.12-rc2. 2024-03-15 CVE-2024-22099 openEuler-20.03-LTS-SP1 Medium 5.5 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H kernel security update 2024-03-15 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1281