High severity · published Oct 11, 2022
CVE-2022-20421
In binder_inc_ref_for_node of binder.c, there is a possible way to corrupt memory due to a use after free
7.8
CVSS
0.6%
EPSS
No
On KEV
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:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AN
Android · Google
Android kernel · source: vendor, NVD
DL
Debian Linux · Debian
10.0; 11.0 · source: NVD
SS
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · Siemens
before V1.1 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-20421
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-20421
Mailing List
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
Patch
https://source.android.com/security/bulletin/2022-10-01
Third Party Advisory
https://www.debian.org/security/2022/dsa-5257
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-770721.html
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-794697.html
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-831302.html
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