QID 353144

Date Published: 2022-02-01

QID 353144: Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-007

A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (kdsetmde).
The highest threat from this vulnerability is to data confidentiality. (
( CVE-2021-3753) a flaw was found in the linux kernel.
A race condition was discovered in the ext4 subsystem.
The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (
( CVE-2021-40490)



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 severity.
  • CVSS V2 rated as Medium - 4.4 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2KERNEL-5.4-2022-007 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 353144

    CVE-2021-3753 | CVE-2021-40490 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2KERNEL-5.4-2022-007 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALASKERNEL-5.4-2022-007.html
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