QID 353293

Date Published: 2022-05-09

QID 353293: Amazon Linux Security Advisory for kernel : ALAS2-2022-1793

A use-after-free flaw was found in the linux kernel's fuse filesystem in the way a user triggers write().
This flaw allows a local user to gain unauthorized access to data from the fuse filesystem, resulting in privilege escalation. (
( CVE-2022-1011) a vulnerability was found in the pfkey_register function in net/key/af_key.c in the linux kernel.
This flaw allows a local, unprivileged user to gain access to kernel memory, leading to a system crash or a leak of internal kernel information. (
( CVE-2022-1353) a null pointer dereference flaw was found in the linux kernel's x.25 set of standardized network protocols functionality in the way a user terminates their session using a simulated ethernet card and continued usage of this connection.
This flaw allows a local user to crash the system. (
( CVE-2022-1516) mcba_usb_start_xmit in drivers/net/can/usb/mcba_usb.c in the linux kernel through 5.17.1 has a double free. (
( CVE-2022-28389) a double-free flaw was found in the linux kernel in the ems_usb_start_xmit function.
This flaw allows an attacker to create a memory leak and corrupt the underlying data structure by calling free more than once. (
( CVE-2022-28390)



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 - 4.6 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2-2022-1793 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 353293

    CVE-2022-28389 | CVE-2022-1011 | CVE-2022-28390 | CVE-2022-1353 | CVE-2022-1516 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2022-1793 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2022-1793.html
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