Rapid7 Vulnerability & Exploit Database

Amazon Linux AMI: CVE-2023-3611: Security patch for kernel (ALAS-2023-1792)

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

Amazon Linux AMI: CVE-2023-3611: Security patch for kernel (ALAS-2023-1792)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
07/21/2023
Created
08/10/2023
Added
08/09/2023
Modified
08/09/2023

Description

An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation.

The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks.

We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.

Solution(s)

  • amazon-linux-upgrade-kernel

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;