var-202104-1670
Vulnerability from variot
An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in the f2fs module in the Linux kernel in versions before 5.12.0-rc4. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability. The vulnerability stems from a boundary check failure. This update provides the corresponding updates for the Linux KVM kernel for Ubuntu 21.04. ========================================================================== Ubuntu Security Notice USN-5343-1 March 22, 2022
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM
Summary:
Several security issues were fixed in the Linux kernel.
Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-kvm: Linux kernel for cloud environments - linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty
Details:
Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the Linux kernel did not properly restrict access to the cgroups v1 release_agent feature. A local attacker could use this to gain administrative privileges. (CVE-2022-0492)
It was discovered that the aufs file system in the Linux kernel did not properly restrict mount namespaces, when mounted with the non-default allow_userns option set. A local attacker could use this to gain administrative privileges. (CVE-2016-2853)
It was discovered that the aufs file system in the Linux kernel did not properly maintain POSIX ACL xattr data, when mounted with the non-default allow_userns option. A local attacker could possibly use this to gain elevated privileges. (CVE-2016-2854)
It was discovered that the f2fs file system in the Linux kernel did not properly validate metadata in some situations. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-19449)
It was discovered that the XFS file system implementation in the Linux kernel did not properly validate meta data in some circumstances. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service. (CVE-2020-12655)
Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-25670)
Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly deallocate memory in certain error situations. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2020-25671, CVE-2020-25672)
Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly handle error conditions in some situations, leading to an infinite loop. A local attacker could use this to cause a denial of service. (CVE-2020-25673)
Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled EAPOL frames from unauthenticated senders. A physically proximate attacker could inject malicious packets to cause a denial of service (system crash). (CVE-2020-26139)
Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation could reassemble mixed encrypted and plaintext fragments. A physically proximate attacker could possibly use this issue to inject packets or exfiltrate selected fragments. (CVE-2020-26147)
It was discovered that the BR/EDR pin-code pairing procedure in the Linux kernel was vulnerable to an impersonation attack. A physically proximate attacker could possibly use this to pair to a device without knowledge of the pin-code. An authenticated attacker could possibly use this to expose sensitive information. (CVE-2020-26558, CVE-2021-0129)
It was discovered that the FUSE user space file system implementation in the Linux kernel did not properly handle bad inodes in some situations. A local attacker could possibly use this to cause a denial of service. (CVE-2020-36322)
It was discovered that the Infiniband RDMA userspace connection manager implementation in the Linux kernel contained a race condition leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possible execute arbitrary code. (CVE-2020-36385)
It was discovered that the DRM subsystem in the Linux kernel contained double-free vulnerabilities. A privileged attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-20292)
It was discovered that a race condition existed in the timer implementation in the Linux kernel. A privileged attacker could use this to cause a denial of service. (CVE-2021-20317)
Or Cohen and Nadav Markus discovered a use-after-free vulnerability in the nfc implementation in the Linux kernel. A privileged local attacker could use this issue to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-23134)
It was discovered that the Xen paravirtualization backend in the Linux kernel did not properly deallocate memory in some situations. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2021-28688)
It was discovered that the RPA PCI Hotplug driver implementation in the Linux kernel did not properly handle device name writes via sysfs, leading to a buffer overflow. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-28972)
It was discovered that a race condition existed in the netfilter subsystem of the Linux kernel when replacing tables. A local attacker could use this to cause a denial of service (system crash). (CVE-2021-29650)
It was discovered that a race condition in the kernel Bluetooth subsystem could lead to use-after-free of slab objects. An attacker could use this issue to possibly execute arbitrary code. (CVE-2021-32399)
It was discovered that the CIPSO implementation in the Linux kernel did not properly perform reference counting in some situations, leading to use- after-free vulnerabilities. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33033)
It was discovered that a use-after-free existed in the Bluetooth HCI driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33034)
Asaf Modelevsky discovered that the Intel(R) Ethernet ixgbe driver for the Linux kernel did not properly validate large MTU requests from Virtual Function (VF) devices. A local attacker could possibly use this to cause a denial of service. (CVE-2021-33098)
Norbert Slusarek discovered that the CAN broadcast manger (bcm) protocol implementation in the Linux kernel did not properly initialize memory in some situations. (CVE-2021-34693)
马哲宇 discovered that the IEEE 1394 (Firewire) nosy packet sniffer driver in the Linux kernel did not properly perform reference counting in some situations, 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. A local attacker could use this issue to cause a denial of service (system crash). (CVE-2021-3506)
It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device initialization failure, leading to a double-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-3564)
It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device detach events, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-3573)
Murray McAllister discovered that the joystick device interface in the Linux kernel did not properly validate data passed via an ioctl(). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code on systems with a joystick device registered. (CVE-2021-3612)
It was discovered that the tracing subsystem in the Linux kernel did not properly keep track of per-cpu ring buffer state. A privileged attacker could use this to cause a denial of service. (CVE-2021-3679)
It was discovered that the Virtio console implementation in the Linux kernel did not properly validate input lengths in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2021-38160)
It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly compute the access permissions for shadow pages in some situations. A local attacker could use this to cause a denial of service. (CVE-2021-38198)
It was discovered that the MAX-3421 host USB device driver in the Linux kernel did not properly handle device removal events. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2021-38204)
It was discovered that the NFC implementation in the Linux kernel did not properly handle failed connect events leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service. (CVE-2021-38208)
It was discovered that the configfs interface for USB gadgets in the Linux kernel contained a race condition. (CVE-2021-39648)
It was discovered that the ext4 file system in the Linux kernel contained a race condition when writing xattrs to an inode. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. (CVE-2021-40490)
It was discovered that the 6pack network protocol driver in the Linux kernel did not properly perform validation checks. A privileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-42008)
It was discovered that the ISDN CAPI implementation in the Linux kernel contained a race condition in certain situations that could trigger an array out-of-bounds bug. A privileged local attacker could possibly use this to cause a denial of service or execute arbitrary code. (CVE-2021-43389)
It was discovered that the Phone Network protocol (PhoNet) implementation in the Linux kernel did not properly perform reference counting in some error conditions. A local attacker could possibly use this to cause a denial of service (memory exhaustion). (CVE-2021-45095)
Wenqing Liu discovered that the f2fs file system in the Linux kernel did not properly validate the last xattr entry in an inode. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-45469)
Amit Klein discovered that the IPv6 implementation in the Linux kernel could disclose internal state in some situations. An attacker could possibly use this to expose sensitive information. (CVE-2021-45485)
It was discovered that the per cpu memory allocator in the Linux kernel could report kernel pointers via dmesg. An attacker could use this to expose sensitive information or in conjunction with another kernel vulnerability. (CVE-2018-5995)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04 ESM: linux-image-4.4.0-1103-kvm 4.4.0-1103.112 linux-image-4.4.0-1138-aws 4.4.0-1138.152 linux-image-4.4.0-222-generic 4.4.0-222.255 linux-image-4.4.0-222-lowlatency 4.4.0-222.255 linux-image-aws 4.4.0.1138.143 linux-image-generic 4.4.0.222.229 linux-image-kvm 4.4.0.1103.101 linux-image-lowlatency 4.4.0.222.229 linux-image-virtual 4.4.0.222.229
Ubuntu 14.04 ESM: linux-image-4.4.0-1102-aws 4.4.0-1102.107 linux-image-4.4.0-222-generic 4.4.0-222.255~14.04.1 linux-image-4.4.0-222-lowlatency 4.4.0-222.255~14.04.1 linux-image-aws 4.4.0.1102.100 linux-image-generic-lts-xenial 4.4.0.222.193 linux-image-lowlatency-lts-xenial 4.4.0.222.193 linux-image-virtual-lts-xenial 4.4.0.222.193
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-5343-1 CVE-2016-2853, CVE-2016-2854, CVE-2018-5995, CVE-2019-19449, CVE-2020-12655, CVE-2020-25670, CVE-2020-25671, CVE-2020-25672, CVE-2020-25673, CVE-2020-26139, CVE-2020-26147, CVE-2020-26555, CVE-2020-26558, CVE-2020-36322, CVE-2020-36385, CVE-2021-0129, CVE-2021-20292, CVE-2021-20317, CVE-2021-23134, CVE-2021-28688, CVE-2021-28972, CVE-2021-29650, CVE-2021-32399, CVE-2021-33033, CVE-2021-33034, CVE-2021-33098, CVE-2021-34693, CVE-2021-3483, CVE-2021-3506, CVE-2021-3564, CVE-2021-3573, CVE-2021-3612, CVE-2021-3679, CVE-2021-38160, CVE-2021-38198, CVE-2021-38204, CVE-2021-38208, CVE-2021-39648, CVE-2021-40490, CVE-2021-42008, CVE-2021-43389, CVE-2021-45095, CVE-2021-45469, CVE-2021-45485, CVE-2022-0492
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"data": "An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in the f2fs module in the Linux kernel in versions before 5.12.0-rc4. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability. The vulnerability stems from a boundary check failure. \nThis update provides the corresponding updates for the Linux KVM\nkernel for Ubuntu 21.04. ==========================================================================\nUbuntu Security Notice USN-5343-1\nMarch 22, 2022\n\nlinux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities\n==========================================================================\n\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 16.04 ESM\n- Ubuntu 14.04 ESM\n\nSummary:\n\nSeveral security issues were fixed in the Linux kernel. \n\nSoftware Description:\n- linux: Linux kernel\n- linux-aws: Linux kernel for Amazon Web Services (AWS) systems\n- linux-kvm: Linux kernel for cloud environments\n- linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty\n\nDetails:\n\nYiqi Sun and Kevin Wang discovered that the cgroups implementation in the\nLinux kernel did not properly restrict access to the cgroups v1\nrelease_agent feature. A local attacker could use this to gain\nadministrative privileges. (CVE-2022-0492)\n\nIt was discovered that the aufs file system in the Linux kernel did not\nproperly restrict mount namespaces, when mounted with the non-default\nallow_userns option set. A local attacker could use this to gain\nadministrative privileges. (CVE-2016-2853)\n\nIt was discovered that the aufs file system in the Linux kernel did not\nproperly maintain POSIX ACL xattr data, when mounted with the non-default\nallow_userns option. A local attacker could possibly use this to gain\nelevated privileges. (CVE-2016-2854)\n\nIt was discovered that the f2fs file system in the Linux kernel did not\nproperly validate metadata in some situations. An attacker could use this\nto construct a malicious f2fs image that, when mounted and operated on,\ncould cause a denial of service (system crash) or possibly execute\narbitrary code. (CVE-2019-19449)\n\nIt was discovered that the XFS file system implementation in the Linux\nkernel did not properly validate meta data in some circumstances. An\nattacker could use this to construct a malicious XFS image that, when\nmounted, could cause a denial of service. (CVE-2020-12655)\n\nKiyin (\u5c39\u4eae) discovered that the NFC LLCP protocol implementation in the\nLinux kernel contained a reference counting error. A local attacker could\nuse this to cause a denial of service (system crash). (CVE-2020-25670)\n\nKiyin (\u5c39\u4eae) discovered that the NFC LLCP protocol implementation in the\nLinux kernel did not properly deallocate memory in certain error\nsituations. A local attacker could use this to cause a denial of service\n(memory exhaustion). (CVE-2020-25671, CVE-2020-25672)\n\nKiyin (\u5c39\u4eae) discovered that the NFC LLCP protocol implementation in the\nLinux kernel did not properly handle error conditions in some situations,\nleading to an infinite loop. A local attacker could use this to cause a\ndenial of service. (CVE-2020-25673)\n\nMathy Vanhoef discovered that the Linux kernel\u2019s WiFi implementation\nincorrectly handled EAPOL frames from unauthenticated senders. A physically\nproximate attacker could inject malicious packets to cause a denial of\nservice (system crash). (CVE-2020-26139)\n\nMathy Vanhoef discovered that the Linux kernel\u2019s WiFi implementation could\nreassemble mixed encrypted and plaintext fragments. A physically proximate\nattacker could possibly use this issue to inject packets or exfiltrate\nselected fragments. (CVE-2020-26147)\n\nIt was discovered that the BR/EDR pin-code pairing procedure in the Linux\nkernel was vulnerable to an impersonation attack. A physically proximate\nattacker could possibly use this to pair to a device without knowledge of\nthe pin-code. An authenticated attacker could possibly\nuse this to expose sensitive information. (CVE-2020-26558, CVE-2021-0129)\n\nIt was discovered that the FUSE user space file system implementation in\nthe Linux kernel did not properly handle bad inodes in some situations. A\nlocal attacker could possibly use this to cause a denial of service. \n(CVE-2020-36322)\n\nIt was discovered that the Infiniband RDMA userspace connection manager\nimplementation in the Linux kernel contained a race condition leading to a\nuse-after-free vulnerability. A local attacker could use this to cause a\ndenial of service (system crash) or possible execute arbitrary code. \n(CVE-2020-36385)\n\nIt was discovered that the DRM subsystem in the Linux kernel contained\ndouble-free vulnerabilities. A privileged attacker could possibly use this\nto cause a denial of service (system crash) or possibly execute arbitrary\ncode. (CVE-2021-20292)\n\nIt was discovered that a race condition existed in the timer implementation\nin the Linux kernel. A privileged attacker could use this to cause a denial\nof service. (CVE-2021-20317)\n\nOr Cohen and Nadav Markus discovered a use-after-free vulnerability in the\nnfc implementation in the Linux kernel. A privileged local attacker could\nuse this issue to cause a denial of service (system crash) or possibly\nexecute arbitrary code. (CVE-2021-23134)\n\nIt was discovered that the Xen paravirtualization backend in the Linux\nkernel did not properly deallocate memory in some situations. A local\nattacker could use this to cause a denial of service (memory exhaustion). \n(CVE-2021-28688)\n\nIt was discovered that the RPA PCI Hotplug driver implementation in the\nLinux kernel did not properly handle device name writes via sysfs, leading\nto a buffer overflow. A privileged attacker could use this to cause a\ndenial of service (system crash) or possibly execute arbitrary code. \n(CVE-2021-28972)\n\nIt was discovered that a race condition existed in the netfilter subsystem\nof the Linux kernel when replacing tables. A local attacker could use this\nto cause a denial of service (system crash). (CVE-2021-29650)\n\nIt was discovered that a race condition in the kernel Bluetooth subsystem\ncould lead to use-after-free of slab objects. An attacker could use this\nissue to possibly execute arbitrary code. (CVE-2021-32399)\n\nIt was discovered that the CIPSO implementation in the Linux kernel did not\nproperly perform reference counting in some situations, leading to use-\nafter-free vulnerabilities. An attacker could use this to cause a denial of\nservice (system crash) or possibly execute arbitrary code. (CVE-2021-33033)\n\nIt was discovered that a use-after-free existed in the Bluetooth HCI driver\nof the Linux kernel. A local attacker could use this to cause a denial of\nservice (system crash) or possibly execute arbitrary code. (CVE-2021-33034)\n\nAsaf Modelevsky discovered that the Intel(R) Ethernet ixgbe driver for the\nLinux kernel did not properly validate large MTU requests from Virtual\nFunction (VF) devices. A local attacker could possibly use this to cause a\ndenial of service. (CVE-2021-33098)\n\nNorbert Slusarek discovered that the CAN broadcast manger (bcm) protocol\nimplementation in the Linux kernel did not properly initialize memory in\nsome situations. (CVE-2021-34693)\n\n\u9a6c\u54f2\u5b87 discovered that the IEEE 1394 (Firewire) nosy packet sniffer driver in\nthe Linux kernel did not properly perform reference counting in some\nsituations, leading to a use-after-free vulnerability. A local attacker\ncould use this to cause a denial of service (system crash) or possibly\nexecute arbitrary code. A local attacker could use this issue\nto cause a denial of service (system crash). (CVE-2021-3506)\n\nIt was discovered that the bluetooth subsystem in the Linux kernel did not\nproperly handle HCI device initialization failure, leading to a double-free\nvulnerability. An attacker could use this to cause a denial of service or\npossibly execute arbitrary code. (CVE-2021-3564)\n\nIt was discovered that the bluetooth subsystem in the Linux kernel did not\nproperly handle HCI device detach events, leading to a use-after-free\nvulnerability. An attacker could use this to cause a denial of service or\npossibly execute arbitrary code. (CVE-2021-3573)\n\nMurray McAllister discovered that the joystick device interface in the\nLinux kernel did not properly validate data passed via an ioctl(). A local\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code on systems with a joystick device\nregistered. (CVE-2021-3612)\n\nIt was discovered that the tracing subsystem in the Linux kernel did not\nproperly keep track of per-cpu ring buffer state. A privileged attacker\ncould use this to cause a denial of service. (CVE-2021-3679)\n\nIt was discovered that the Virtio console implementation in the Linux\nkernel did not properly validate input lengths in some situations. A local\nattacker could possibly use this to cause a denial of service (system\ncrash). (CVE-2021-38160)\n\nIt was discovered that the KVM hypervisor implementation in the Linux\nkernel did not properly compute the access permissions for shadow pages in\nsome situations. A local attacker could use this to cause a denial of\nservice. (CVE-2021-38198)\n\nIt was discovered that the MAX-3421 host USB device driver in the Linux\nkernel did not properly handle device removal events. A physically\nproximate attacker could use this to cause a denial of service (system\ncrash). (CVE-2021-38204)\n\nIt was discovered that the NFC implementation in the Linux kernel did not\nproperly handle failed connect events leading to a NULL pointer\ndereference. A local attacker could use this to cause a denial of service. \n(CVE-2021-38208)\n\nIt was discovered that the configfs interface for USB gadgets in the Linux\nkernel contained a race condition. (CVE-2021-39648)\n\nIt was discovered that the ext4 file system in the Linux kernel contained a\nrace condition when writing xattrs to an inode. A local attacker could use\nthis to cause a denial of service or possibly gain administrative\nprivileges. (CVE-2021-40490)\n\nIt was discovered that the 6pack network protocol driver in the Linux\nkernel did not properly perform validation checks. A privileged attacker\ncould use this to cause a denial of service (system crash) or execute\narbitrary code. (CVE-2021-42008)\n\nIt was discovered that the ISDN CAPI implementation in the Linux kernel\ncontained a race condition in certain situations that could trigger an\narray out-of-bounds bug. A privileged local attacker could possibly use\nthis to cause a denial of service or execute arbitrary code. \n(CVE-2021-43389)\n\nIt was discovered that the Phone Network protocol (PhoNet) implementation\nin the Linux kernel did not properly perform reference counting in some\nerror conditions. A local attacker could possibly use this to cause a\ndenial of service (memory exhaustion). (CVE-2021-45095)\n\nWenqing Liu discovered that the f2fs file system in the Linux kernel did\nnot properly validate the last xattr entry in an inode. An attacker could\nuse this to construct a malicious f2fs image that, when mounted and\noperated on, could cause a denial of service (system crash) or possibly\nexecute arbitrary code. (CVE-2021-45469)\n\nAmit Klein discovered that the IPv6 implementation in the Linux kernel\ncould disclose internal state in some situations. An attacker could\npossibly use this to expose sensitive information. (CVE-2021-45485)\n\nIt was discovered that the per cpu memory allocator in the Linux kernel\ncould report kernel pointers via dmesg. An attacker could use this to\nexpose sensitive information or in conjunction with another kernel\nvulnerability. (CVE-2018-5995)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 16.04 ESM:\n linux-image-4.4.0-1103-kvm 4.4.0-1103.112\n linux-image-4.4.0-1138-aws 4.4.0-1138.152\n linux-image-4.4.0-222-generic 4.4.0-222.255\n linux-image-4.4.0-222-lowlatency 4.4.0-222.255\n linux-image-aws 4.4.0.1138.143\n linux-image-generic 4.4.0.222.229\n linux-image-kvm 4.4.0.1103.101\n linux-image-lowlatency 4.4.0.222.229\n linux-image-virtual 4.4.0.222.229\n\nUbuntu 14.04 ESM:\n linux-image-4.4.0-1102-aws 4.4.0-1102.107\n linux-image-4.4.0-222-generic 4.4.0-222.255~14.04.1\n linux-image-4.4.0-222-lowlatency 4.4.0-222.255~14.04.1\n linux-image-aws 4.4.0.1102.100\n linux-image-generic-lts-xenial 4.4.0.222.193\n linux-image-lowlatency-lts-xenial 4.4.0.222.193\n linux-image-virtual-lts-xenial 4.4.0.222.193\n\nAfter a standard system update you need to reboot your computer to make\nall the necessary changes. \n\nATTENTION: Due to an unavoidable ABI change the kernel updates have\nbeen given a new version number, which requires you to recompile and\nreinstall all third party kernel modules you might have installed. \nUnless you manually uninstalled the standard kernel metapackages\n(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,\nlinux-powerpc), a standard system upgrade will automatically perform\nthis as well. \n\nReferences:\n https://ubuntu.com/security/notices/USN-5343-1\n CVE-2016-2853, CVE-2016-2854, CVE-2018-5995, CVE-2019-19449,\n CVE-2020-12655, CVE-2020-25670, CVE-2020-25671, CVE-2020-25672,\n CVE-2020-25673, CVE-2020-26139, CVE-2020-26147, CVE-2020-26555,\n CVE-2020-26558, CVE-2020-36322, CVE-2020-36385, CVE-2021-0129,\n CVE-2021-20292, CVE-2021-20317, CVE-2021-23134, CVE-2021-28688,\n CVE-2021-28972, CVE-2021-29650, CVE-2021-32399, CVE-2021-33033,\n CVE-2021-33034, CVE-2021-33098, CVE-2021-34693, CVE-2021-3483,\n CVE-2021-3506, CVE-2021-3564, CVE-2021-3573, CVE-2021-3612,\n CVE-2021-3679, CVE-2021-38160, CVE-2021-38198, CVE-2021-38204,\n CVE-2021-38208, CVE-2021-39648, CVE-2021-40490, CVE-2021-42008,\n CVE-2021-43389, CVE-2021-45095, CVE-2021-45469, CVE-2021-45485,\n CVE-2022-0492\n",
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.