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Exploited vulnerability · CISA KEV

Is CVE-2019-2215 exploited? Yes: in CISA KEV since 3 Nov 2021

Gociux · Android Kernel · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2019-2215, Android Kernel Use-After-Free Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 3 Nov 2021, 754 days after it was published. It affects Android Kernel. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 3 Nov 2021
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity7.8CVSS 3.1 · high
US federal due3 May 2022BOD 22-01 deadline

What it is

Android Kernel contains a use-after-free vulnerability in binder.c that allows for privilege escalation from an application to the Linux Kernel. This vulnerability was observed chained with CVE-2020-0041 and CVE-2020-0069 under exploit chain "AbstractEmu."

VendorAndroid (17 exploited CVEs in KEV)
ProductAndroid Kernel
VulnerabilityAndroid Kernel Use-After-Free Vulnerability
WeaknessCWE-416
Published11 Oct 2019
Added to KEV3 Nov 2021
Reported by (CNA)google_android

What to do

  1. Check whether you run it. Look for Android Kernel in your asset inventory, including appliances and cloud images. Stack check lists every exploited Android CVE at once.
  2. Apply the fix. Apply updates per vendor instructions.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 11 Oct 2019.
  4. Get told next time. Email alerts when CISA adds a CVE for Android.

Other exploited CVEs in Android Kernel

References

Questions

Is CVE-2019-2215 being exploited?

Yes. CISA added CVE-2019-2215 to the Known Exploited Vulnerabilities catalog on 3 Nov 2021, which means there is reliable evidence of exploitation in the wild.

Is CVE-2019-2215 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2019-2215?

Apply updates per vendor instructions. Check Android's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Android Kernel and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in November 2021 · Android scorecard · act-now radar.

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