CVE-2021-0308

MEDIUM

Android 8.0-11 - Out-of-bounds Write in ReadLogicalParts

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-0308. PoCs published by Trinadh465.

AI-analyzed exploit summary This repository contains the source code for GPT fdisk tools (gdisk, cgdisk, sgdisk, fixparts) with a Makefile and test script, likely demonstrating CVE-2021-0308, a vulnerability in these tools. The code appears functional and includes build instructions.

Description

In ReadLogicalParts of basicmbr.cc, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-8.1, Android-9, Android-10, Android-11, Android-8.0; Android ID: A-158063095.

Exploits (1)

nomisec WORKING POC
by Trinadh465 · poc
https://github.com/Trinadh465/platform_external_gptfdisk_AOSP10_r33_CVE-2021-0308

This repository contains the source code for GPT fdisk tools (gdisk, cgdisk, sgdisk, fixparts) with a Makefile and test script, likely demonstrating CVE-2021-0308, a vulnerability in these tools. The code appears functional and includes build instructions.

Classification
Working Poc 90%
Attack Type
Other
Complexity
Moderate
Reliability
Reliable
Target: GPT fdisk (gdisk, cgdisk, sgdisk, fixparts) AOSP10_r33
No auth needed
Prerequisites: Access to a system with GPT fdisk tools installed
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (3)

Core 3
Core References
Vendor Advisory x_refsource_confirm
https://source.android.com/security/bulletin/2021-01-01
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2021/02/msg00010.html
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202105-03

Scores

CVSS v3 6.8
EPSS 0.0044
EPSS Percentile 34.7%
Attack Vector PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (6)
debian/debian_linux 9.0
google/android 8.0
google/android 8.1
google/android 9.0
google/android 10.0
google/android 11.0
Published Jan 11, 2021
Tracked Since Feb 18, 2026