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CVE-2023-21255

Date: July 12, 2023

In multiple functions of binder.c, there is a possible memory corruption 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.

Language: C

Severity Score

Related Resources (7)

https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
https://www.debian.org/security/2023/dsa-5480
https://source.android.com/security/bulletin/2023-07-01
https://security.netapp.com/advisory/ntap-20240119-0010/
https://nvd.nist.gov/vuln/detail/CVE-2023-21255
https://android.googlesource.com/kernel/common/+/1ca1130ec62d
https://www.mend.io/vulnerability-database/CVE-2023-21255

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Use After Free

CWE-416

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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