QID 353238

Date Published: 2022-04-21

QID 353238: Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.10-2022-013

A use-after-free flaw was found in the linux kernel's sound subsystem in the way a user triggers concurrent calls of pcm hw_params.
The hw_free ioctls or similar race condition happens inside alsa pcm for other ioctls.
This flaw allows a local user to crash or potentially escalate their privileges on the system. (
( CVE-2022-1048) a buffer overflow flaw was found in the linux kernel's nfc protocol functionality.
This flaw allows a local user to crash or escalate their privileges on the system. (
( CVE-2022-26490) a heap buffer overflow flaw was found in ipsec esp transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c.
This flaw allows a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation threat. (
( CVE-2022-27666) in the linux kernel before 5.17.1, a refcount leak bug was found in net/llc/af_llc.c. (
( CVE-2022-28356)



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: ALAS2KERNEL-5.10-2022-013 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 353238

    CVE-2022-28356 | CVE-2022-1048 | CVE-2022-27666 | CVE-2022-26490 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2KERNEL-5.10-2022-013 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALASKERNEL-5.10-2022-013.html
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