CVE-2023-20939 — Improper Locking in Google Android

CWE-667 — Improper LockingCWE-122 — Heap-based Buffer Overflow5 documents5 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 92.08%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Platform System Connectivity WificondGoogle Android
Timeline
PublishedFeb 28
Latest updateMay 3

Description

In multiple functions of looper_backed_event_loop.cpp, there is a possible way to corrupt memory due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12 Android-12L Android-13Android ID: A-243362981

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-12 Android-12L Android-13
▶NVDgoogle/android12.0, 12.1, 13.0+2
▶Androidplatform/system_connectivity_wificond12:0 — 12:2023-02-01+2

Patches

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

🔴Vulnerability Details

2
GHSA
GHSA-q6x6-wrp8-56vh: In multiple functions of looper_backed_event_loop↗2023-02-28
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OSV
CVE-2023-20939: In multiple functions of looper_backed_event_loop↗2023-02-01
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📋Vendor Advisories

2
Red Hat
bluez: phone book access profile heap-based buffer overflow remote code execution vulnerability↗2024-05-03
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Android
CVE-2023-20939: Android Security Bulletin 2023-02-01 CVE: CVE-2023-20939 Severity: HIGH Type: EoP Affected AOSP versions: 12, 12L, 13 References: A-243362981↗2023-02-01
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