CVE-2023-34440 — Improper Input Validation in Intel-microcode

CWE-20 — Improper Input Validation5 documents5 sources
Severity
8.7HIGHNVD
EPSS
0.0%
top 94.18%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Debian Intel-microcode
Timeline
PublishedFeb 12
Latest updateFeb 13

Description

Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

CVSS vector

CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Affected Packages1 packages

▶debiandebian/intel-microcode< intel-microcode 3.20250211.1~deb12u1 (bookworm)

🔴Vulnerability Details

2
GHSA
GHSA-474w-fcfg-344q: Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via↗2025-02-13
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OSV
CVE-2023-34440: Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via↗2025-02-12
▶

📋Vendor Advisories

2
Red Hat
microcode_ctl: Improper input validation in UEFI firmware↗2025-02-12
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Debian
CVE-2023-34440: intel-microcode - Improper input validation in UEFI firmware for some Intel(R) Processors may allo...↗2023
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