Integer overflow in Google Android
CVE-2021-1047
In valid_ipc_dram_addr of cm_access_control.c, there is a possible out of bounds read due to an integer overflow. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-197966306References: N/A
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.001 (1.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 1.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
- Google Android
- Android — versions Android kernel
Weakness classification (CWE)
Public proof-of-concept exploits
References
- source.android.com/security/bulletin/pixel/2021-12-01 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-1047?
- CVE-2021-1047 is a medium-severity vulnerability in Google Android, classified under Integer Overflow or Wraparound. CVSS score: 4.4/10. Published 2021-12-15.
- How severe is CVE-2021-1047?
- Medium severity. CVSS v3 base score is 4.4 out of 10.
- Is CVE-2021-1047 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.