Packages
- linux - Linux kernel
- linux-aws - Linux kernel for Amazon Web Services (AWS) systems
- linux-aws-5.4 - Linux kernel for Amazon Web Services (AWS) systems
- linux-azure - Linux kernel for Microsoft Azure Cloud systems
- linux-azure-5.4 - Linux kernel for Microsoft Azure cloud systems
- linux-bluefield - Linux kernel for NVIDIA BlueField platforms
- linux-gkeop - Linux kernel for Google Container Engine (GKE) systems
- linux-hwe-5.4 - Linux hardware enablement (HWE) kernel
- linux-ibm - Linux kernel for IBM cloud systems
- linux-ibm-5.4 - Linux kernel for IBM cloud systems
- linux-kvm - Linux kernel for cloud environments
- linux-oracle - Linux kernel for Oracle Cloud systems
- linux-oracle-5.4 - Linux kernel for Oracle Cloud systems
- linux-raspi - Linux kernel for Raspberry Pi systems
Details
It was discovered that the framebuffer driver on the Linux kernel did not
verify size limits when changing font or screen size, leading to an out-of-
bounds write. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2021-33655)
Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation
in the Linux kernel did not provide sufficient randomization when
calculating port offsets. An attacker could possibly use this to expose
sensitive information. (CVE-2022-1012, CVE-2022-32296)
Norbert Slusarek discovered that a race condition existed in the perf
subsystem in the Linux kernel, resulting in a use-after-free vulnerability.
A privileged local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary...
It was discovered that the framebuffer driver on the Linux kernel did not
verify size limits when changing font or screen size, leading to an out-of-
bounds write. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2021-33655)
Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation
in the Linux kernel did not provide sufficient randomization when
calculating port offsets. An attacker could possibly use this to expose
sensitive information. (CVE-2022-1012, CVE-2022-32296)
Norbert Slusarek discovered that a race condition existed in the perf
subsystem in the Linux kernel, resulting in a use-after-free vulnerability.
A privileged local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2022-1729)
It was discovered that the device-mapper verity (dm-verity) driver in the
Linux kernel did not properly verify targets being loaded into the device-
mapper table. A privileged attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2022-2503)
Domingo Dirutigliano and Nicola Guerrera discovered that the netfilter
subsystem in the Linux kernel did not properly handle rules that truncated
packets below the packet header size. When such rules are in place, a
remote attacker could possibly use this to cause a denial of service
(system crash). (CVE-2022-36946)
Update instructions
After a standard system update you need to reboot your computer to make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.
References
Related notices
- USN-6014-1
- USN-6013-1
- USN-6001-1
- USN-5695-1
- USN-5687-1
- USN-5684-1
- USN-5683-1
- USN-5679-1
- USN-5678-1
- USN-5669-1
- USN-6014-1
- USN-6013-1
- USN-6001-1
- USN-5695-1
- USN-5687-1
- USN-5684-1
- USN-5683-1
- USN-5679-1
- USN-5678-1
- USN-5669-1
- USN-5669-2
- USN-5660-1
- USN-5655-1
- USN-5654-1
- USN-5652-1
- USN-5650-1
- USN-5648-1
- USN-5647-1
- USN-5644-1
- USN-5640-1
- USN-5639-1
- USN-5635-1
- USN-5634-1
- USN-5633-1
- USN-5630-1
- USN-5624-1
- USN-5623-1
- USN-5621-1
- USN-5616-1
- USN-5602-1
- USN-5599-1
- USN-5596-1
- USN-5594-1
- USN-5590-1
- USN-5580-1
- USN-5577-1
- USN-5560-1
- USN-5560-2
- USN-5471-1
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