CVE-2023-31355

CWE-119 — Buffer OverflowCWE-787 — Out-of-bounds Write4 documents4 sources
Severity
6.0MEDIUM
EPSS
0.8%
top 26.02%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
90
AMD 3RD GEN AMD Epyc™ ProcessorsAMD 4TH GEN AMD Epyc™ ProcessorsAMD AMD Epyc™ Embedded 7003+87 more
Timeline
PublishedAug 5

Description

Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of memory from a decommissioned guest.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:NExploitability: 1.5 | Impact: 4.0

Affected Packages90 packages

▶NVDamd/epyc_7203_firmware< milanpi_1.0.0.d
▶NVDamd/epyc_72f3_firmware< milanpi_1.0.0.d
▶NVDamd/epyc_7303_firmware< milanpi_1.0.0.d
▶NVDamd/epyc_7313_firmware< milanpi_1.0.0.d
▶NVDamd/epyc_7343_firmware< milanpi_1.0.0.d

🔴Vulnerability Details

2
GHSA
GHSA-x6rx-7w39-qpg5: Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing readi↗2024-08-05
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CVEList
CVE-2023-31355: Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing readi↗2024-08-05
▶

📋Vendor Advisories

1
Red Hat
linux-firmware: hw:amd: Improper Restriction of Write Operations in SNP Firmware↗2024-08-05
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CVE-2023-31355 (MEDIUM CVSS 6) | Improper restriction of write opera | cvebase.io