CVE-2020-0423 — HIGH (7.8) — White Hats Nepal

Vulnerability Description

In binder_release_work of binder.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-161151868References: N/A

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Google	Android	-
Debian	Debian Linux	9.0

Related Weaknesses (CWE)

CWE-667 CWE-416

References

https://lists.debian.org/debian-lts-announce/2020/12/msg00015.htmlMailing ListThird Party Advisory
https://source.android.com/security/bulletin/2020-10-01Vendor Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.htmlMailing ListThird Party Advisory
https://source.android.com/security/bulletin/2020-10-01Vendor Advisory

FAQ

What is CVE-2020-0423?

CVE-2020-0423 is a vulnerability with a CVSS score of 7.8 (HIGH). In binder_release_work of binder.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges n...

How severe is CVE-2020-0423?

CVE-2020-0423 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-0423?

Check the references section above for vendor advisories and patch information. Affected products include: Google Android, Debian Debian Linux.