CVE-2022-20421 — Use After Free in Google Android

CWE-416 — Use After Free32 documents9 sources
Severity
7.8HIGHNVD
OSV5.5OSV4.4
EPSS
6.3%
top 8.99%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Linux KernelDebian LinuxDebian Linux+1 more
Timeline
PublishedOct 11
Latest updateApr 13

Description

In binder_inc_ref_for_node of binder.c, there is a possible way to corrupt memory due to a use after free. 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-239630375References: 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< 5.10.149-1+3
▶Ubuntulinux/linux_kernel< 4.15.0-201.212+2
▶debiandebian/linux< linux 5.19.11-1 (bookworm)

Also affects: Debian Linux 10.0, 11.0

Patches

Patch: source.android.com ↗Patch: source.android.com ↗

🔴Vulnerability Details

13
VulDB
Google Android binder.c binder_inc_ref_for_node use after free (A-239630375 / EUVD-2022-25681)↗2026-04-13
▶
VulDB
Google Android use after free (A-239630375 / EUVD-2022-25681)↗2026-04-13
▶
OSV
linux-gke-5.15 vulnerabilities↗2023-02-15
▶
OSV
linux-bluefield vulnerabilities↗2023-01-19
▶
OSV
linux-azure-5.4, linux-azure-fde vulnerabilities↗2023-01-10
▶

📋Vendor Advisories

18
CISA ICS
Siemens SIMATIC↗2024-03-14
▶
CISA ICS
Siemens SIMATIC S7-1500 TM MFP BIOS↗2023-06-15
▶
CISA ICS
Siemens SIMATIC S7-1500 TM MFP Linux Kernel↗2023-06-15
▶
Ubuntu
Linux kernel (GKE) vulnerabilities↗2023-02-15
▶
Ubuntu
Linux kernel (BlueField) vulnerabilities↗2023-01-19
▶