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Vulnerability record · CVE-2020-8432 · published 29 January 2020

CVE-2020-8432: Denx u-boot double free vulnerability

Denx · U Boot

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.

9.8 CVSS 3.1 Critical EPSS 3.1% · top 12.9% CWE-415 · Double freeCWE-787 · Out-of-bounds write
9.8CVSS 3.1 base score, v2 10.0
3.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00030.html Mailing ListThird Party Advisory
https://www.mail-archive.com/u-boot%40lists.denx.de/msg354060.html
https://www.mail-archive.com/u-boot%40lists.denx.de/msg354114.html
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00030.html Mailing ListThird Party Advisory
https://www.mail-archive.com/u-boot%40lists.denx.de/msg354060.html
https://www.mail-archive.com/u-boot%40lists.denx.de/msg354114.html

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Source: NIST National Vulnerability Database (record CVE-2020-8432), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.