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Vulnerability · Published Apr 12, 2022 · Assigned by google_android

CVE-2021-39800

Medium 5.5

In plain English

A medium-severity security flaw in Android. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities).

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.1%top 95.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In ion_ioctl of ion-ioctl.c, there is a possible way to leak kernel head data due to a use after free. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-208277166References: Upstream kernel

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2021-39800
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2021-39800
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2021-39800
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2021-39800
Ubuntu:26.10linux-azure-fdeno fix listedUBUNTU-CVE-2021-39800
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2021-39800
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2021-39800
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2021-39800
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2021-39800
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2021-39800
Ubuntu:24.04:LTSlinux-hwe-7.0no fix listedUBUNTU-CVE-2021-39800
Ubuntu:26.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2021-39800
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2021-39800
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2021-39800
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2021-39800
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2021-39800
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2021-39800
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2021-39800
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2021-39800
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2021-39800
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2021-39800
Ubuntu:26.04:LTSlinux-oem-7.0no fix listedUBUNTU-CVE-2021-39800
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2021-39800
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2021-39800
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2021-39800
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2021-39800
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2021-39800
Ubuntu:24.04:LTSlinux-riscv-7.0no fix listedUBUNTU-CVE-2021-39800
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2021-39800

Affected products (as reported)

VendorProductVersions
n/a Android Android kernel

References