CVE-2023-20940 — Improper Verification of Cryptographic Signature in Google Android

CWE-347 — Improper Verification of Cryptographic Signature4 documents4 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 94.72%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Platform BuildGoogle Android
Timeline
PublishedFeb 28

Description

In the Android operating system, there is a possible way to replace a boot partition due to improperly used crypto. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-256237041

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages4 packages

▶CVEListV5google/androidAndroid-13
▶NVDgoogle/android13.0
▶Androidplatform/build13:0 — 13:2023-02-01

Patches

Patch: source.android.com ↗Patch: source.android.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-5rc8-v3hv-cqcg: In the Android operating system, there is a possible way to replace a boot partition due to improperly used crypto↗2023-02-28
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OSV
CVE-2023-20940: In the Android operating system, there is a possible way to replace a boot partition due to improperly used crypto↗2023-02-01
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📋Vendor Advisories

1
Android
CVE-2023-20940: Android Security Bulletin 2023-02-01 CVE: CVE-2023-20940 Severity: HIGH Type: EoP Affected AOSP versions: 13 References: A-256237041↗2023-02-01
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