QID 354101

Date Published: 2022-10-26

QID 354101: Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.10-2022-021

A vulnerability was found in the fs/inode.c:inode_init_owner() function logic of the linux kernel that allows local users to create files for the xfs file-system with an unintended group ownership and with group execution and sgid permission bits set, in a scenario where a directory is sgid and belongs to a certain group and is writable by a user who is not a member of this group.
This can lead to excessive permissions granted in case when they should not.
This vulnerability is similar to the previous( CVE-2018-13405 and adds the missed fix for the xfs. (
( CVE-2021-4037) a flaw was found in the linux kernel.
The existing kvm sev api has a vulnerability that allows a non-root (host) user-level application to crash the host kernel by creating a confidential guest vm instance in amd cpu that supports secure encrypted virtualization (sev). (
( CVE-2022-0171) a use-after-free flaw was found in the linux kernel's unix socket garbage collection and io_uring.
This flaw allows a local user to crash or potentially escalate their privileges on the system. (
( CVE-2022-2602) found linux kernel flaw in the i740 driver.
The userspace program could pass any values to the driver through ioctl() interface.
The driver doesn't check the value of 'pixclock', so it may cause a divide by zero error. (
( CVE-2022-3061) an issue was discovered in the linux kernel before 5.19.
In pxa3xx_gcu_write in drivers/video/fbdev/pxa3xx-gcu.c, the count parameter has a type conflict of size_t versus int, causing an integer overflow and bypassing the size check.
After that, because it is used as the third argument to copy_from_user(), a heap overflow may occur. (
( CVE-2022-39842)



Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as High - 7.8 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2KERNEL-5.10-2022-021 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 354101

    CVE-2022-0171 | CVE-2022-2602 | CVE-2021-4037 | CVE-2022-3061 | CVE-2022-39842 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2KERNEL-5.10-2022-021 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALASKERNEL-5.10-2022-021.html
    By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].