An update for kernel is now available for openEuler-20.03-LTS-SP1 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2022-1940 Final 1.0 1.0 2022-09-23 Initial 2022-09-23 2022-09-23 openEuler SA Tool V1.0 2022-09-23 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): A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "virt_ext" field, this issue could allow a malicious L1 to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape.(CVE-2021-3656) An out of memory bounds write flaw (1 or 2 bytes of memory) in the Linux kernel NFS subsystem was found in the way users use mirroring (replication of files with NFS). A user, having access to the NFS mount, could potentially use this flaw to crash the system or escalate privileges on the system.(CVE-2021-4157) A flaw was found in the sctp_make_strreset_req function in net/sctp/sm_make_chunk.c in the SCTP network protocol in the Linux kernel with a local user privilege access. In this flaw, an attempt to use more buffer than is allocated triggers a BUG_ON issue, leading to a denial of service (DOS).(CVE-2022-0322) ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: none.(CVE-2021-3894) In the Linux kernel before 5.15.3, fs/quota/quota_tree.c does not validate the block number in the quota tree (on disk). This can, for example, lead to a kernel/locking/rwsem.c use-after-free if there is a corrupted quota file.(CVE-2021-45868) A NULL pointer dereference flaw in diFree in fs/jfs/inode.c in Journaled File System (JFS)in the Linux kernel. This could allow a local attacker to crash the system or leak kernel internal information.(CVE-2022-3202) 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-2022-1940 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-3656 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-4157 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2022-0322 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-3894 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-45868 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2022-3202 https://nvd.nist.gov/vuln/detail/CVE-2021-3656 https://nvd.nist.gov/vuln/detail/CVE-2021-4157 https://nvd.nist.gov/vuln/detail/CVE-2022-0322 https://nvd.nist.gov/vuln/detail/CVE-2021-3894 https://nvd.nist.gov/vuln/detail/CVE-2021-45868 https://nvd.nist.gov/vuln/detail/CVE-2022-3202 openEuler-20.03-LTS-SP1 python3-perf-4.19.90-2209.5.0.0169.oe1.aarch64.rpm python2-perf-4.19.90-2209.5.0.0169.oe1.aarch64.rpm bpftool-debuginfo-4.19.90-2209.5.0.0169.oe1.aarch64.rpm kernel-tools-devel-4.19.90-2209.5.0.0169.oe1.aarch64.rpm kernel-tools-debuginfo-4.19.90-2209.5.0.0169.oe1.aarch64.rpm python3-perf-debuginfo-4.19.90-2209.5.0.0169.oe1.aarch64.rpm kernel-devel-4.19.90-2209.5.0.0169.oe1.aarch64.rpm python2-perf-debuginfo-4.19.90-2209.5.0.0169.oe1.aarch64.rpm kernel-tools-4.19.90-2209.5.0.0169.oe1.aarch64.rpm kernel-debugsource-4.19.90-2209.5.0.0169.oe1.aarch64.rpm bpftool-4.19.90-2209.5.0.0169.oe1.aarch64.rpm kernel-source-4.19.90-2209.5.0.0169.oe1.aarch64.rpm perf-debuginfo-4.19.90-2209.5.0.0169.oe1.aarch64.rpm kernel-4.19.90-2209.5.0.0169.oe1.aarch64.rpm kernel-debuginfo-4.19.90-2209.5.0.0169.oe1.aarch64.rpm perf-4.19.90-2209.5.0.0169.oe1.aarch64.rpm kernel-4.19.90-2209.5.0.0169.oe1.src.rpm kernel-tools-debuginfo-4.19.90-2209.5.0.0169.oe1.x86_64.rpm kernel-debugsource-4.19.90-2209.5.0.0169.oe1.x86_64.rpm kernel-source-4.19.90-2209.5.0.0169.oe1.x86_64.rpm kernel-debuginfo-4.19.90-2209.5.0.0169.oe1.x86_64.rpm python3-perf-debuginfo-4.19.90-2209.5.0.0169.oe1.x86_64.rpm perf-debuginfo-4.19.90-2209.5.0.0169.oe1.x86_64.rpm bpftool-debuginfo-4.19.90-2209.5.0.0169.oe1.x86_64.rpm python2-perf-debuginfo-4.19.90-2209.5.0.0169.oe1.x86_64.rpm python2-perf-4.19.90-2209.5.0.0169.oe1.x86_64.rpm perf-4.19.90-2209.5.0.0169.oe1.x86_64.rpm kernel-tools-4.19.90-2209.5.0.0169.oe1.x86_64.rpm python3-perf-4.19.90-2209.5.0.0169.oe1.x86_64.rpm kernel-tools-devel-4.19.90-2209.5.0.0169.oe1.x86_64.rpm kernel-devel-4.19.90-2209.5.0.0169.oe1.x86_64.rpm kernel-4.19.90-2209.5.0.0169.oe1.x86_64.rpm bpftool-4.19.90-2209.5.0.0169.oe1.x86_64.rpm A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "virt_ext" field, this issue could allow a malicious L1 to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. 2022-09-23 CVE-2021-3656 openEuler-20.03-LTS-SP1 High 8.8 AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H kernel security update 2022-09-23 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1940 An out of memory bounds write flaw (1 or 2 bytes of memory) in the Linux kernel NFS subsystem was found in the way users use mirroring (replication of files with NFS). A user, having access to the NFS mount, could potentially use this flaw to crash the system or escalate privileges on the system. 2022-09-23 CVE-2021-4157 openEuler-20.03-LTS-SP1 Medium 5.9 AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H kernel security update 2022-09-23 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1940 A flaw was found in the sctp_make_strreset_req function in net/sctp/sm_make_chunk.c in the SCTP network protocol in the Linux kernel with a local user privilege access. In this flaw, an attempt to use more buffer than is allocated triggers a BUG_ON issue, leading to a denial of service (DOS). 2022-09-23 CVE-2022-0322 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 2022-09-23 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1940 ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: none. 2022-09-23 CVE-2021-3894 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 2022-09-23 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1940 In the Linux kernel before 5.15.3, fs/quota/quota_tree.c does not validate the block number in the quota tree (on disk). This can, for example, lead to a kernel/locking/rwsem.c use-after-free if there is a corrupted quota file. 2022-09-23 CVE-2021-45868 openEuler-20.03-LTS-SP1 Medium 5.5 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H kernel security update 2022-09-23 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1940 A NULL pointer dereference flaw in diFree in fs/jfs/inode.c in Journaled File System (JFS)in the Linux kernel. This could allow a local attacker to crash the system or leak kernel internal information. 2022-09-23 CVE-2022-3202 openEuler-20.03-LTS-SP1 High 7.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H kernel security update 2022-09-23 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1940