🛡️ USN-6318-1 — linux-aws-6.2

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

linux, linux-aws, linux-aws-6.2, linux-azure, linux-hwe-6.2, linux-ibm, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-6.2, linux-raspi vulnerabilities

Daniel Moghimi discovered that some Intel(R) Processors did not properly

clear microarchitectural state after speculative execution of various

instructions. A local unprivileged user could use this to obtain to

sensitive information. (CVE-2022-40982)

Tavis Ormandy discovered that some AMD processors did not properly handle

speculative execution of certain vector register instructions. A local

attacker could use this to expose sensitive information. (CVE-2023-20593)

It was discovered that the universal 32bit network packet classifier

implementation in the Linux kernel did not properly perform reference

counting in some situations, leading to a use-after-free vulnerability. A

local attacker could use this to cause a denial of service (system crash)

or possibly execute arbitrary code. (CVE-2023-3609)

It was discovered that the netfilter subsystem in the Linux kernel did not

properly handle certain error conditions, leading to a use-after-free

vulnerability. A local attacker could use this to cause a denial of service

(system crash) or possibly execute arbitrary code. (CVE-2023-3610)

It was discovered that the Quick Fair Queueing network scheduler

implementation in the Linux kernel contained an out-of-bounds write

vulnerability. A local attacker could use this to cause a denial of service

(system crash) or possibly execute arbitrary code. (CVE-2023-3611)

It was discovered that the network packet classifier with

netfilter/firewall marks implementation in the Linux kernel did not

properly handle reference counting, leading to a use-after-free

vulnerability. A local attacker could use this to cause a denial of service

(system crash) or possibly execute arbitrary code. (CVE-2023-3776)

Kevin Rich discovered that the netfilter subsystem in the Linux kernel did

not properly handle table rules flush in certain circumstances. A local

attacker could possibly use this to cause a denial of service (system

crash) or execute arbitrary code. (CVE-2023-3777)

Kevin Rich discovered that the netfilter subsystem in the Linux kernel did

not properly handle rule additions to bound chains in certain

circumstances. A local attacker could possibly use this to cause a denial

of service (system crash) or execute arbitrary code. (CVE-2023-3995)

It was discovered that the netfilter subsystem in the Linux kernel did not

properly handle PIPAPO element removal, leading to a use-after-free

vulnerability. A local attacker could possibly use this to cause a denial

of service (system crash) or execute arbitrary code. (CVE-2023-4004)

Kevin Rich discovered that the netfilter subsystem in the Linux kernel did

not properly handle bound chain deactivation in certain circumstances. A

local attacker could possibly use this to cause a denial of service (system

crash) or execute arbitrary code. (CVE-2023-4015)

Affected software

USN-6318-1 is recorded against 3 packages.

  • linux-aws-6.2 (fixed in 6.2.0-1010.10~22.04.1)
  • linux-hwe-6.2 (fixed in 6.2.0-31.31~22.04.1)
  • linux-lowlatency-hwe-6.2 (fixed in 6.2.0-1011.11~22.04.1)

Timeline and source

Published on 29 August 2023 and last revised on 3 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Advisory)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)
ubuntu.com (Report)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2023-08-29
Updated 2026-08-12
Modified 2026-06-03
Fix URL N/A

Affected Packages

Software From version Fixed in
linux-aws-6.2 6.2.0-1010.10~22.04.1
linux-hwe-6.2 6.2.0-31.31~22.04.1
linux-lowlatency-hwe-6.2 6.2.0-1011.11~22.04.1

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