CVE-2023-21492 Samsung Mobile Devices: 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 Jun 9, 2023
What to do
- Install Samsung's security update for Mobile Devices. 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
- Samsung Mobile Devices Insertion of Sensitive Information Into Log File Vulnerability
- Product
- Samsung Mobile Devices
- CISA description
- Samsung mobile devices running Android 11, 12, and 13 contain an insertion of sensitive information into log file vulnerability that allows a privileged, local attacker to conduct an address space layout randomization (ASLR) bypass.
- Type of flaw
- Information leak (CWE-532)
- Confirmed exploited
- May 19, 2023
- US federal patch deadline
- Jun 9, 2023
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Answering about CVE-2023-21492 ·
Questions about CVE-2023-21492
Is CVE-2023-21492 being exploited?
Yes. CISA added CVE-2023-21492 to its Known Exploited Vulnerabilities catalog on May 19, 2023, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2023-21492?
Install Samsung's security update for Mobile Devices. 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-2023-21492?
Only if you use Samsung Mobile Devices. This one is aimed at devices or apps of the kind people own.