Use After Free in Google Android
CVE-2021-0399
In qtaguid_untag of xt_qtaguid.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-176919394References: Upstream kernel
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (30.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Google Android
- Android — versions Android kernel
Weakness classification (CWE)
Public proof-of-concept exploits
- nipund513/Exploiting-UAF-by-Ret2bpf-in-Android-Kernel-CVE-2021-0399-
- ARPSyndicate/cvemon
- TinyNiko/android_
- kdn111/linux-kernel-exploitation
- khanhdn111/linux-kernel-exploitation
- khanhdz-06/linux-kernel-exploitation
- khanhdz191/linux-kernel-exploitation
- khanhhdz/linux-kernel-exploitation
- khanhhdz06/linux-kernel-exploitation
- khanhnd123/linux-kernel-exploitation
References
- source.android.com/security/bulletin/2021-03-01 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-0399?
- CVE-2021-0399 is a high-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 7.8/10. Published 2021-03-10.
- How severe is CVE-2021-0399?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-0399 known to be exploited?
- 18 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.