CVE-2020-0041: Android Kernel Out-of-Bounds Write Vulnerability

CVE-2020-0041 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2021-11-03

An out-of-bounds write vulnerability exists in the binder_transaction function of binder.c in the Android Kernel due to an incorrect bounds check. This flaw allows a local attacker to achieve privilege escalation without requiring user interaction.

Vendors: Android.

Quick answers

Is CVE-2020-0041 exploited in the wild?
Yes. CVE-2020-0041 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2020-0041?
Critical severity, with a CVSS score of 7.8, published 3 November 2021.
Which products and versions are affected?
Google Android Kernel Android kernel.
Is there a fix for CVE-2020-0041?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2020-0041 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2020-0041?
Check whether you run Android Kernel. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Google Android Kernel Android kernel

Timeline

  • 2020-03-10: disclosed: NVD Published Date
  • 2021-11-03: kev added: Date added to CISA Known Exploited Vulnerabilities Catalog
  • 2021-11-03: exploited: Observed in the wild as part of the AbstractEmu exploit chain.

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