🛡️ UBUNTU-CVE-2021-39802
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In change_pte_range of mprotect.c , there is a possible way to make a shared mmap writable due to a permissions bypass. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-213339151References: Upstream kernel

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2022-04-12
Updated 2026-06-08
Modified 2025-10-24
Fix URL N/A

Affected Packages

Software From version Fixed in
linux-aws-5.0
linux-aws-5.11
linux-aws-5.3
linux-aws-5.8
linux-azure
linux-azure-5.11
linux-azure-5.3
linux-azure-5.8
linux-azure-edge
linux-gcp
linux-gcp-5.11
linux-gcp-5.3
linux-gcp-5.8
linux-gke-4.15
linux-hwe
linux-hwe-5.11
linux-hwe-5.8
linux-hwe-edge
linux-intel-5.13
linux-oem
linux-oem-5.10
linux-oem-5.13
linux-oem-5.6
linux-oracle-5.0
linux-oracle-5.11
linux-oracle-5.3
linux-oracle-5.8
linux-raspi2
linux-riscv
linux-riscv-5.11
linux-riscv-5.8

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