<?xml version="1.0" encoding="UTF-8"?> <cvrfdoc xmlns="http://www.icasi.org/CVRF/schema/cvrf/1.1" xmlns:cvrf="http://www.icasi.org/CVRF/schema/cvrf/1.1"> <DocumentTitle xml:lang="en">An update for kernel is now available for openEuler-20.03-LTS-SP1</DocumentTitle> <DocumentType>Security Advisory</DocumentType> <DocumentPublisher Type="Vendor"> <ContactDetails>openeuler-security@openeuler.org</ContactDetails> <IssuingAuthority>openEuler security committee</IssuingAuthority> </DocumentPublisher> <DocumentTracking> <Identification> <ID>openEuler-SA-2024-1281</ID> </Identification> <Status>Final</Status> <Version>1.0</Version> <RevisionHistory> <Revision> <Number>1.0</Number> <Date>2024-03-15</Date> <Description>Initial</Description> </Revision> </RevisionHistory> <InitialReleaseDate>2024-03-15</InitialReleaseDate> <CurrentReleaseDate>2024-03-15</CurrentReleaseDate> <Generator> <Engine>openEuler SA Tool V1.0</Engine> <Date>2024-03-15</Date> </Generator> </DocumentTracking> <DocumentNotes> <Note Title="Synopsis" Type="General" Ordinal="1" xml:lang="en">kernel security update</Note> <Note Title="Summary" Type="General" Ordinal="2" xml:lang="en">An update for kernel is now available for openEuler-20.03-LTS-SP1.</Note> <Note Title="Description" Type="General" Ordinal="3" xml:lang="en">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)</Note> <Note Title="Topic" Type="General" Ordinal="4" xml:lang="en">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.</Note> <Note Title="Severity" Type="General" Ordinal="5" xml:lang="en">High</Note> <Note Title="Affected Component" Type="General" Ordinal="6" xml:lang="en">kernel</Note> </DocumentNotes> <DocumentReferences> <Reference Type="Self"> <URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1281</URL> </Reference> <Reference Type="openEuler CVE"> <URL>https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2023-52439</URL> <URL>https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2024-1151</URL> <URL>https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2024-22099</URL> </Reference> <Reference Type="Other"> <URL>https://nvd.nist.gov/vuln/detail/CVE-2023-52439</URL> <URL>https://nvd.nist.gov/vuln/detail/CVE-2024-1151</URL> 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CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">kernel-tools-4.19.90-2403.2.0.0242.oe1.x86_64.rpm</FullProductName> <FullProductName ProductID="kernel-tools-devel-4.19.90-2403.2.0.0242" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">kernel-tools-devel-4.19.90-2403.2.0.0242.oe1.x86_64.rpm</FullProductName> <FullProductName ProductID="python3-perf-4.19.90-2403.2.0.0242" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">python3-perf-4.19.90-2403.2.0.0242.oe1.x86_64.rpm</FullProductName> <FullProductName ProductID="kernel-tools-debuginfo-4.19.90-2403.2.0.0242" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">kernel-tools-debuginfo-4.19.90-2403.2.0.0242.oe1.x86_64.rpm</FullProductName> <FullProductName ProductID="perf-4.19.90-2403.2.0.0242" CPE="cpe:/a:openEuler:openEuler:20.03-LTS-SP1">perf-4.19.90-2403.2.0.0242.oe1.x86_64.rpm</FullProductName> </Branch> </ProductTree> <Vulnerability Ordinal="1" xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1"> <Notes> <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">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.</Note> </Notes> <ReleaseDate>2024-03-15</ReleaseDate> <CVE>CVE-2023-52439</CVE> <ProductStatuses> <Status Type="Fixed"> <ProductID>openEuler-20.03-LTS-SP1</ProductID> </Status> </ProductStatuses> <Threats> <Threat Type="Impact"> <Description>High</Description> </Threat> </Threats> <CVSSScoreSets> <ScoreSet> <BaseScore>7.0</BaseScore> <Vector>AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H</Vector> </ScoreSet> </CVSSScoreSets> <Remediations> <Remediation Type="Vendor Fix"> <Description>kernel security update</Description> <DATE>2024-03-15</DATE> <URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1281</URL> </Remediation> </Remediations> </Vulnerability> <Vulnerability Ordinal="2" xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1"> <Notes> <Note Title="Vulnerability Description" Type="General" Ordinal="2" xml:lang="en">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.</Note> </Notes> <ReleaseDate>2024-03-15</ReleaseDate> <CVE>CVE-2024-1151</CVE> <ProductStatuses> <Status Type="Fixed"> <ProductID>openEuler-20.03-LTS-SP1</ProductID> </Status> </ProductStatuses> <Threats> <Threat Type="Impact"> <Description>Medium</Description> </Threat> </Threats> <CVSSScoreSets> <ScoreSet> <BaseScore>5.5</BaseScore> <Vector>AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H</Vector> </ScoreSet> </CVSSScoreSets> <Remediations> <Remediation Type="Vendor Fix"> <Description>kernel security update</Description> <DATE>2024-03-15</DATE> <URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1281</URL> </Remediation> </Remediations> </Vulnerability> <Vulnerability Ordinal="3" xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1"> <Notes> <Note Title="Vulnerability Description" Type="General" Ordinal="3" xml:lang="en">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.</Note> </Notes> <ReleaseDate>2024-03-15</ReleaseDate> <CVE>CVE-2024-22099</CVE> <ProductStatuses> <Status Type="Fixed"> <ProductID>openEuler-20.03-LTS-SP1</ProductID> </Status> </ProductStatuses> <Threats> <Threat Type="Impact"> <Description>Medium</Description> </Threat> </Threats> <CVSSScoreSets> <ScoreSet> <BaseScore>5.5</BaseScore> <Vector>AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H</Vector> </ScoreSet> </CVSSScoreSets> <Remediations> <Remediation Type="Vendor Fix"> <Description>kernel security update</Description> <DATE>2024-03-15</DATE> <URL>https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1281</URL> </Remediation> </Remediations> </Vulnerability> </cvrfdoc>