CVE-2023-20928 — Use After Free in Google Android

CWE-416 — Use After FreeCWE-667 — Improper Locking15 documents6 sources
Severity
7.8HIGHNVD
OSV6.6
EPSS
0.1%
top 70.60%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Linux KernelDebian LinuxGoogle Android
Timeline
PublishedJan 26
Latest updateMar 3

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

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages4 packages

▶Debianlinux/linux_kernel< 5.10.158-1+3
▶Ubuntulinux/linux_kernel< 5.4.0-139.156
▶debiandebian/linux< linux 5.19.6-1 (bookworm)

🔴Vulnerability Details

8
OSV
linux-bluefield vulnerabilities↗2023-03-03
▶
OSV
linux-azure-fde vulnerabilities↗2023-03-02
▶
OSV
linux-aws-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-oracle-5.4 vulnerabilities↗2023-02-15
▶
OSV
linux-gke vulnerabilities↗2023-02-15
▶
OSV
linux, linux-aws, linux-azure, linux-azure-5.4, linux-gkeop, linux-kvm, linux-oracle, linux-raspi, linux-raspi-5.4 vulnerabilities↗2023-02-09
▶

📋Vendor Advisories

6
Ubuntu
Linux kernel (BlueField) vulnerabilities↗2023-03-03
▶
Ubuntu
Linux kernel (Azure CVM) vulnerabilities↗2023-03-02
▶
Ubuntu
Linux kernel (GKE) vulnerabilities↗2023-02-15
▶
Ubuntu
Linux kernel vulnerabilities↗2023-02-15
▶
Android
CVE-2023-20928: Binder driver↗2023-01-01
▶