QID 354098

Date Published: 2022-10-26

QID 354098: Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-037

A flaw was found in hw.
Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions. (
( CVE-2022-23816) 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) a flaw was found in hw.
( CVE-2022-29900) a flaw was found in hw.
Non-transparent sharing of branch predictor targets between contexts in some intel(r) processors may potentially allow an authorized user to enable information disclosure via local access. (
( CVE-2022-29901) a race condition flaw was found in the linux kernel sound subsystem due to improper locking.
It could lead to a null pointer dereference while handling the sndctl_dsp_sync ioctl.
A privileged local user (root or member of the audio group) could use this flaw to crash the system, resulting in a denial of service condition. (
( CVE-2022-3303) 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 - 6.5 severity.
  • CVSS V2 rated as Low - 2.1 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2KERNEL-5.4-2022-037 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 354098

    CVE-2022-3303 | CVE-2022-23816 | CVE-2022-2602 | CVE-2022-29900 | CVE-2022-29901 | CVE-2022-39842 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2KERNEL-5.4-2022-037 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALASKERNEL-5.4-2022-037.html
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