CVE Vulnerabilities

CVE-2020-8432

Double Free

Published: Jan 29, 2020 | Modified: Nov 21, 2024
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
10 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu
LOW

In Das U-Boot through 2020.01, a double free has been found in the cmd/gpt.c do_rename_gpt_parts() function. Double freeing may result in a write-what-where condition, allowing an attacker to execute arbitrary code. NOTE: this vulnerablity was introduced when attempting to fix a memory leak identified by static analysis.

Weakness

The product calls free() twice on the same memory address.

Affected Software

Name Vendor Start Version End Version
U-boot Denx * 2020.01 (including)
U-boot Ubuntu bionic *
U-boot Ubuntu eoan *
U-boot Ubuntu esm-infra/bionic *
U-boot Ubuntu esm-infra/focal *
U-boot Ubuntu focal *
U-boot Ubuntu trusty *
U-boot Ubuntu upstream *

Potential Mitigations

References