VulnerabilityModified
CVE-2021-0520
In several functions of MemoryFileSystem.cpp and related files, there is a possible use after free due to a race condition.
HIGH 7.0EPSS 0.18%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In several functions of MemoryFileSystem.cpp and related files, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-10Android ID: A-176237595
- CVSS 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.18% probability · 7th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-362, CWE-416
- Affected
- google/android
- Source
- security@android.com
References
- https://source.android.com/security/bulletin/2021-06-01Patch, Vendor Advisory
- https://source.android.com/security/bulletin/2021-06-01Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.