Ubuntu alert USN-6973-3 (linux-aws-5.4)

From:
             
 
Rodrigo Figueiredo Zaiden <rodrigo.zaiden@canonical.com>
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-6973-3] Linux kernel (AWS) vulnerabilities
Date:
             
 
Mon, 26 Aug 2024 15:20:18 -0300
Message-ID:
             
 
<765772d0-c2c0-431e-a25d-e8ac5391091e@canonical.com>
==========================================================================
Ubuntu Security Notice USN-6973-3
August 26, 2024

linux-aws-5.4 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems

Details:

It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel, leading to a null pointer dereference vulnerability. A
privileged local attacker could use this to possibly cause a denial of
service (system crash). (CVE-2024-24860)

Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
   - SuperH RISC architecture;
   - MMC subsystem;
   - Network drivers;
   - SCSI drivers;
   - GFS2 file system;
   - IPv4 networking;
   - IPv6 networking;
   - HD-audio driver;
(CVE-2024-26830, CVE-2024-39484, CVE-2024-36901, CVE-2024-26929,
CVE-2024-26921, CVE-2021-46926, CVE-2023-52629, CVE-2023-52760)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS
   linux-image-5.4.0-1131-aws      5.4.0-1131.141~18.04.1
                                   Available with Ubuntu Pro
   linux-image-aws                 5.4.0.1131.141~18.04.1
                                   Available with Ubuntu Pro

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
   https://ubuntu.com/security/notices/USN-6973-3
   https://ubuntu.com/security/notices/USN-6973-2
   https://ubuntu.com/security/notices/USN-6973-1
   CVE-2021-46926, CVE-2023-52629, CVE-2023-52760, CVE-2024-24860,
   CVE-2024-26830, CVE-2024-26921, CVE-2024-26929, CVE-2024-36901,
   CVE-2024-39484



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