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Vulnerability · Published Jan 24, 2023 · Assigned by google_android

CVE-2023-20928

High 7.8

In plain English

A high-severity use-after-free in Android. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 91.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In binder_vma_close of binder.c, there is a possible use after free due to improper locking. 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-254837884References: Upstream kernel

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.19.6-1DEBIAN-CVE-2023-20928
Debian:13linux5.19.6-1DEBIAN-CVE-2023-20928
Debian:14linux5.19.6-1DEBIAN-CVE-2023-20928
Ubuntu:22.04:LTSlinux5.15.0-53.59UBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-aws5.15.0-1023.27UBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-azure5.15.0-1023.29UBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1024.30.1UBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-gcp5.15.0-1022.29UBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-gke5.15.0-1020.25UBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1008.12UBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-ibm5.15.0-1018.21UBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1018.23UBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-kvm5.15.0-1021.26UBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-53.59UBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1015.15UBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-oracle5.15.0-1022.28UBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-raspi5.15.0-1018.20UBUNTU-CVE-2023-20928
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-20928
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-20928

Affected products (as reported)

VendorProductVersions
n/a Android Android kernel

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References