CVE-2023-20569

2023-08-0818:15:11

Debian Security Bug Tracker

security-tracker.debian.org

amd cpus side channel

information disclosure

speculative execution

return address prediction

unix

CVSS3

4.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.3

Confidence

Low

EPSS

0.001

Percentile

26.1%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Debian12allamd64-microcode< 3.20230719.1~deb12u1amd64-microcode_3.20230719.1~deb12u1_all.deb
Debian11allamd64-microcode< 3.20230719.1~deb11u1amd64-microcode_3.20230719.1~deb11u1_all.deb
Debian999allamd64-microcode< 3.20230719.1amd64-microcode_3.20230719.1_all.deb
Debian13allamd64-microcode< 3.20230719.1amd64-microcode_3.20230719.1_all.deb
Debian12alllinux< 6.1.38-4linux_6.1.38-4_all.deb
Debian11alllinux< 5.10.179-5linux_5.10.179-5_all.deb
Debian999alllinux< 6.4.4-3linux_6.4.4-3_all.deb
Debian13alllinux< 6.4.4-3linux_6.4.4-3_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	amd64-microcode	< 3.20230719.1~deb12u1	amd64-microcode_3.20230719.1~deb12u1_all.deb
Debian	11	all	amd64-microcode	< 3.20230719.1~deb11u1	amd64-microcode_3.20230719.1~deb11u1_all.deb
Debian	999	all	amd64-microcode	< 3.20230719.1	amd64-microcode_3.20230719.1_all.deb
Debian	13	all	amd64-microcode	< 3.20230719.1	amd64-microcode_3.20230719.1_all.deb
Debian	12	all	linux	< 6.1.38-4	linux_6.1.38-4_all.deb
Debian	11	all	linux	< 5.10.179-5	linux_5.10.179-5_all.deb
Debian	999	all	linux	< 6.4.4-3	linux_6.4.4-3_all.deb
Debian	13	all	linux	< 6.4.4-3	linux_6.4.4-3_all.deb