NULL pointer dereference in Allwinnertech Android Q Sdk
CVE-2021-38785
There is a NULL pointer deference in the Allwinner R818 SoC Android Q SDK V1.0 camera driver /dev/cedar_dev that could use the ioctl cmd IOCTL_GET_IOMMU_ADDR to cause a system crash.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.018 (77.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Allwinnertech Android Q Sdk — versions 1.0
- Allwinnertech R818
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.allwinnertech.com/index.php (Product, Vendor Advisory)
- github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner R818 SoC：Camera Driv… (Broken Link)
- www.cnvd.org.cn/flaw/show/CNVD-2021-49170 (Third Party Advisory)
- vul.wangan.com/a/CNVD-2021-49170 (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-38785?
- CVE-2021-38785 is a high-severity vulnerability in Allwinnertech Android Q Sdk, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2022-01-18.
- How severe is CVE-2021-38785?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-38785 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.