In applyRemoteView of NotificationContentInflater.java, there is a possible way to hide foreground service notification due to misleading or
Affects Android 13 (AOSP) notification handling for foreground services. CVSS rates it medium (6.2). No vendor rating or fixed version is given in the checked facts.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The Android operating system (Android 13) is affected, specifically its notification handling component that renders remote views for app notifications. A local app could exploit this to hide a foreground service notification, which could allow information to be disclosed without any extra privileges or user interaction.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
In applyRemoteView of NotificationContentInflater.java, there is a possible way to hide foreground service notification due to misleading or insufficient UI. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-251586912
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
Affected versions
- n/a Android
Android-13
References 1
source.android.com
Questions about CVE-2023-21237
What does this mean?
The bug is in how Android applies remote views for notification content, where misleading content can hide a foreground service notification. The bulletin classifies the impact as information disclosure.Source: source.android.com
Am I affected, and how do I check?
The listed affected version is AOSP Android 13. To check a device, look at the Android version under Settings > About phone; the checked facts do not describe other setups.Source: source.android.com
What should I do about it?
The checked facts name no fixed version or upgrade target. Check the Android security bulletin for the update that covers this issue and install the latest security patch available for your device.Source: source.android.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2024-03-05, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data
What if there's no patch?
The checked facts list no workaround. Until a fix is installed, the facts give no specific step to limit exposure.Source: source.android.com