Buffer overflow in Google Android
CVE-2023-20821
In nvram, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07937…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (0.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Google Android — versions 11.0, 12.0, 13.0
- Linuxfoundation Yocto — versions 2.6
- Mediatek Mt2713
- Mediatek Mt2735
- Mediatek Mt6833
- Mediatek Mt6835
- Mediatek Mt6853
- Mediatek Mt6855
- Mediatek Mt6873
- Mediatek Mt6875
Weakness classification (CWE)
References
- security@mediatek.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-20821?
- CVE-2023-20821 is a medium-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 6.7/10. Published 2023-09-04.
- How severe is CVE-2023-20821?
- Medium severity. CVSS v3 base score is 6.7 out of 10.