QID 354884

Date Published: 2023-04-19

QID 354884: Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.10-2023-030

An issue was discovered in fs/io_uring.c in the linux kernel through 5.11.8.
It allows attackers to cause a denial of service (deadlock) because exit may be waiting to park a sqpoll thread, but concurrently that sqpoll thread is waiting for a signal to start, aka cid-3ebba796fa25. (
( CVE-2021-28951)

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 Medium - 5.5 severity.

CVSS V2 rated as Medium - 4.9 severity.

Solution

Please refer to Amazon advisory: ALAS2KERNEL-5.10-2023-030 for affected packages and patching details, or update with your package manager.

Vendor References

ALAS2KERNEL-5.10-2023-030 - alas.aws.amazon.com/AL2/ALASKERNEL-5.10-2023-030.html

CVEs related to QID 354884

CVE-2021-28951 |

Software Advisories

Advisory ID	Software	Component	Link
ALAS2KERNEL-5.10-2023-030	amazon linux 2		alas.aws.amazon.com/AL2/ALASKERNEL-5.10-2023-030.html

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