CVE-2020-1459 — Observable Discrepancy in Microsoft Windows 10 Version 1809

CWE-203 — Observable DiscrepancyCWE-200 — Sensitive Information Exposure3 documents3 sources
Severity
5.5MEDIUMNVD
EPSS
7.2%
top 8.42%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
9
Microsoft Windows 10 Version 1809Microsoft Windows 10 Version 1903 FOR Arm64-based SystemsMicrosoft Windows 10 Version 1909+6 more
Timeline
PublishedAug 17
Latest updateMay 24

Description

An information disclosure vulnerability exists on ARM implementations that use speculative execution in control flow via a side-channel analysis, aka "straight-line speculation." To exploit this vulnerability, an attacker with local privileges would need to run a specially crafted application. The security update addresses the vulnerability by bypassing the speculative execution.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NExploitability: 1.8 | Impact: 3.6

Affected Packages9 packages

▶CVEListV5microsoft/windows_10_version_180910.0.0 — publication
▶CVEListV5microsoft/windows_10_version_190910.0.0 — publication
▶CVEListV5microsoft/windows_10_version_200410.0.0 — publication
▶NVDmicrosoft/windows_104 versions+3

Patches

Patch: portal.msrc.microsoft.com ↗Patch: portal.msrc.microsoft.com ↗

🔴Vulnerability Details

1
GHSA
GHSA-cjp5-p4x3-x7jg: An information disclosure vulnerability exists on ARM implementations that use speculative execution in control flow via a side-channel analysis, aka↗2022-05-24
▶

📋Vendor Advisories

1
Microsoft
Windows ARM Information Disclosure Vulnerability↗2020-08-11
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CVE-2020-1459 — Observable Discrepancy in Microsoft | cvebase