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Vulnerability Intelligence

Vulnerability IntelligenceUBUNTU-CVE-2023-20569

UBUNTU-CVE-2023-20569

HIGH8.0

A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. This may result in speculative execution at an attacker-controlled address, poten

Published Aug 8, 2023

Modified 6 months ago

Fix available

Details

A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. This may result in speculative execution at an attacker-controlled address, potentially leading to information disclosure.

Affected Packages(224 packages)

amd64-microcode

Ubuntu 24.04 LTS

Fixed in:

3.20230808.1.1ubuntu1

amd64-microcode

Ubuntu 16.04 LTS

Affected versions:

2.20141028.12.20160316.13.20180524.1~ubuntu0.16.04.13.20180524.1~ubuntu0.16.04.23.20191021.1+really3.20180524.1~ubuntu0.16.04.23.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm13.20191021.1ubuntu0.16.04.1

amd64-microcode

Ubuntu 18.04 LTS

Affected versions:

3.20160316.33.20171205.13.20180524.1~ubuntu0.18.04.13.20180524.1~ubuntu0.18.04.23.20191021.1+really3.20181128.1~ubuntu0.18.04.13.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm13.20191021.1ubuntu0.18.04.2

amd64-microcode

Ubuntu 22.04 LTS

Affected versions:

3.20191218.1ubuntu23.20191218.1ubuntu2.1

Fixed in:

3.20191218.1ubuntu2.2

amd64-microcode

Ubuntu Pro 14.04 LTSUbuntu 14.04 LTS

Affected versions:

1.20120910-32.20131007.1+really20130710.13.20180524.1~ubuntu0.14.04.13.20180524.1~ubuntu0.14.04.2+really20130710.13.20180524.1~ubuntu0.14.04.2+really20130710.1ubuntu1

amd64-microcode

Ubuntu Pro 16.04 LTS

Affected versions:

2.20141028.12.20160316.13.20180524.1~ubuntu0.16.04.13.20180524.1~ubuntu0.16.04.23.20191021.1+really3.20180524.1~ubuntu0.16.04.23.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm13.20191021.1ubuntu0.16.04.1

Fixed in:

3.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm2

amd64-microcode

Ubuntu 20.04 LTS

Affected versions:

3.20181128.1ubuntu23.20191021.1ubuntu13.20191218.1ubuntu13.20191218.1ubuntu1.1

Fixed in:

3.20191218.1ubuntu1.2

amd64-microcode

Ubuntu Pro 18.04 LTS

Affected versions:

3.20160316.33.20171205.13.20180524.1~ubuntu0.18.04.13.20180524.1~ubuntu0.18.04.23.20191021.1+really3.20181128.1~ubuntu0.18.04.13.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm13.20191021.1ubuntu0.18.04.2

Fixed in:

3.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm2

linux

Ubuntu 22.04 LTS

Affected versions:

5.13.0-19.195.15.0-100.1105.15.0-101.1115.15.0-102.1125.15.0-105.1155.15.0-106.1165.15.0-107.1175.15.0-17.175.15.0-18.185.15.0-22.22+42 more

Fixed in:

5.15.0-112.122

linux

Ubuntu 24.04 LTS

Fixed in:

6.5.0-9.9

References

REPORThttps://lore.kernel.org/linux-firmware/20230718231959.3163407-1-john.allen@amd.com/T/#meaa8272d3d5799ffebc729eeaaabb3a14d32665f REPORThttps://ubuntu.com/security/CVE-2023-20569 ADVISORYhttps://ubuntu.com/security/notices/USN-6319-1 ADVISORYhttps://ubuntu.com/security/notices/USN-6412-1 ADVISORYhttps://ubuntu.com/security/notices/USN-6415-1 ADVISORYhttps://ubuntu.com/security/notices/USN-6416-1 ADVISORYhttps://ubuntu.com/security/notices/USN-6416-2 ADVISORYhttps://ubuntu.com/security/notices/USN-6416-3 ADVISORYhttps://ubuntu.com/security/notices/USN-6445-1 ADVISORYhttps://ubuntu.com/security/notices/USN-6445-2 ADVISORYhttps://ubuntu.com/security/notices/USN-6466-1 REPORThttps://www.amd.com/en/resources/product-security/bulletin/amd-sb-7005.html REPORThttps://www.cve.org/CVERecord?id=CVE-2023-20569

CVSS Analysis

CVSS v3.1

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

HighAC:H

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

NoneI:N

Availability

NoneA:N

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Upstream

Related

USN-6319-1 USN-6412-1 USN-6415-1 USN-6416-1 USN-6416-2 USN-6416-3 USN-6445-1 USN-6445-2 USN-6466-1

Ecosystems(30)

Ubuntu 24.04 LTS Ubuntu 16.04 LTS Ubuntu 18.04 LTS Ubuntu 22.04 LTS Ubuntu Pro 14.04 LTS

Timeline

PublishedAug 8, 2023

ModifiedJul 15, 2025

UBUNTU-CVE-2023-20569 | Mondoo Vulnerability Intelligence