CVE-2023-21237 Android Pixel: information leak
In plain words: The program reveals information it should keep private. Leaked secrets — tokens, passwords or memory contents — that help a bigger attack.
Confirmed exploited by CISA on · US federal patch deadline Mar 26, 2024
What to do
- Install Android's security update for Pixel. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Install system updates the day they come out — most phone zero-days are fixed in a point release.
- Restart your phone every few days; some spyware does not survive a reboot.
- If you are a journalist, activist, lawyer, politician or executive, turn on Lockdown Mode (iPhone) or Advanced Protection (Android).
Who is affected
Could reach you. This one is aimed at devices or apps of the kind people own.
What's at risk: Messages, photos, location, microphone and camera. The most serious ones are "zero-click": no tap needed from the owner. They are usually used as spyware against a small number of chosen people.
The details
- Official name
- Android Pixel Information Disclosure Vulnerability
- Product
- Android Pixel
- CISA description
- Android Pixel contains a vulnerability in the Framework component, where the UI may be misleading or insufficient, providing a means to hide a foreground service notification. This could enable a local attacker to disclose sensitive information.
- Type of flaw
- Information leak (CWE-200)
- Confirmed exploited
- Mar 5, 2024
- US federal patch deadline
- Mar 26, 2024
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Answering about CVE-2023-21237 ·
Questions about CVE-2023-21237
Is CVE-2023-21237 being exploited?
Yes. CISA added CVE-2023-21237 to its Known Exploited Vulnerabilities catalog on Mar 5, 2024, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2023-21237?
Install Android's security update for Pixel. If no update exists, follow the vendor's workaround or stop using the product until one ships. Install system updates the day they come out — most phone zero-days are fixed in a point release.
Am I affected by CVE-2023-21237?
Only if you use Android Pixel. This one is aimed at devices or apps of the kind people own.