Home/CVE/A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentia
CVE

CVE-2023-20588

A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentia

A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentiality.

MEDIUM · CVSS 5.5 EPSS 0.05142
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  • EPSS percentile: top 10% of all CVEs by exploitation likelihood
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-369Divide By Zero
▤

Affected Products & Versions

47
debian linuxall versions
amd epyc 7351p firmwareall versions
amd epyc 7401p firmwareall versions
amd epyc 7551p firmwareall versions
amd epyc 7251 firmwareall versions
amd epyc 7261 firmwareall versions
amd epyc 7281 firmwareall versions
amd epyc 7301 firmwareall versions
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · psirt@amd.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 Aug 2023 · 06:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

30
suse-csafopenSUSE-SU-2024:13257-1
usnUSN-6604-2
usnUSN-6604-1
usnUSN-6602-1
usnUSN-6577-1
🔗

References & Sources

28
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2023/09/25/3Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2023/09/25/4Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2023/09/25/5Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2023/09/25/7Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2023/09/25/8Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2023/09/26/5Mailing ListThird Party Advisory
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