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CVE-2020-8432

In Das U-Boot through 2020.01, a double free has been found in the cmd/gpt.c do_rename_gpt_parts(...

9.8 CriticalFix available

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

3.06%Up 1.6 points since Apr 14, 2021

What each source reports

NVD Score used 9.8

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.

Record: CVE-2020-8432
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-415, CWE-787
Updated: 2026-11-02

CVE List No score

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.

Record: CVE-2020-8432
Updated: 2026-11-02

EUVDEUVD-2020-29299 No score

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.

Record: EUVD-2020-29299
Updated: 2026-11-03

GitHub AdvisoriesGHSA-j5r3-pwr2-9cqj No score

In Das U-Boot through 2020.01, a double free has been found in the cmd/gpt.c do_rename_gpt_parts(...

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.

Record: GHSA-j5r3-pwr2-9cqj
Weakness: CWE-415
Updated: 2026-11-02

OSV 9.8

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.

Record: CVE-2020-8432
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2020-8432 9.8

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.

Record: DEBIAN-CVE-2020-8432
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

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OSVUBUNTU-CVE-2020-8432 9.8

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.

Record: UBUNTU-CVE-2020-8432
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVopenSUSE-SU-2020:1869-1 No score

Security update for u-boot

This update for u-boot fixes the following issues:

CVE-2020-8432: Fixed a double free in the cmd/gpt.c do_rename_gpt_parts() function, which allowed an attacker to execute arbitrary code (bsc#1162198)
CVE-2020-10648: Fixed improper signature verification during verified boot (bsc#1167209).

This update was imported from the SUSE:SLE-15-SP2:Update update project.

Record: openSUSE-SU-2020:1869-1
Updated: 2026-11-02

OSVopenSUSE-SU-2020:1930-1 No score

Security update for u-boot

This update for u-boot fixes the following issues:

CVE-2019-14192 (bsc#1143777), CVE-2019-14193 (bsc#1143817), CVE-2019-14199 (bsc#1143824), CVE-2019-14197 (bsc#1143821), CVE-2019-14200 (bsc#1143825), CVE-2019-14201 (bsc#1143827), CVE-2019-14202 (bsc#1143828), CVE-2019-14203 (bsc#1143830), CVE-2019-14204 (bsc#1143831), CVE-2019-14194 (bsc#1143818), CVE-2019-14198 (bsc#1143823), CVE-2019-14195 (bsc#1143819), CVE-2019-14196 (bsc#1143820), CVE-2019-13103 (bsc#1143463), CVE-2020-8432 (bsc#1162198), CVE-2019-11059 (bsc#1134853), CVE-2019-11690 (bsc#1134157) and CVE-2020-10648 (bsc#1167209)

This update was imported from the SUSE:SLE-15-SP1:Update update project.

Record: openSUSE-SU-2020:1930-1
Updated: 2026-11-02

OSVSUSE-SU-2020:3161-1 No score

Security update for u-boot

This update for u-boot fixes the following issues:

CVE-2020-8432: Fixed a double free in the cmd/gpt.c do_rename_gpt_parts() function, which allowed an attacker to execute arbitrary code (bsc#1162198)
CVE-2020-10648: Fixed improper signature verification during verified boot (bsc#1167209).

Record: SUSE-SU-2020:3161-1
Updated: 2026-11-02

OSVSUSE-SU-2020:3255-1 No score

Security update for u-boot

This update for u-boot fixes the following issues:

CVE-2019-14192 (bsc#1143777), CVE-2019-14193 (bsc#1143817), CVE-2019-14199 (bsc#1143824), CVE-2019-14197 (bsc#1143821), CVE-2019-14200 (bsc#1143825), CVE-2019-14201 (bsc#1143827),
CVE-2019-14202 (bsc#1143828), CVE-2019-14203 (bsc#1143830), CVE-2019-14204 (bsc#1143831), CVE-2019-14194 (bsc#1143818), CVE-2019-14198 (bsc#1143823), CVE-2019-14195 (bsc#1143819), CVE-2019-14196 (bsc#1143820), CVE-2019-13103 (bsc#1143463), CVE-2020-8432 (bsc#1162198), CVE-2019-11059 (bsc#1134853), CVE-2019-11690 (bsc#1134157) and CVE-2020-10648 (bsc#1167209).

Fix USB keyboard problems (bsc#1160566).

Record: SUSE-SU-2020:3255-1
Updated: 2026-11-02

OSVSUSE-SU-2020:3256-1 No score

Security update for u-boot

This update for u-boot fixes the following issues:

Fix CVE-2019-13106 (bsc#1144656), CVE-2019-13104 (bsc#1144675), CVE-2019-14192 (bsc#1143777), CVE-2019-14193 (bsc#1143817), CVE-2019-14199 (bsc#1143824), CVE-2019-14197 (bsc#1143821), CVE-2019-14200 (bsc#1143825), CVE-2019-14201 (bsc#1143827), CVE-2019-14202 (bsc#1143828), CVE-2019-14203 (bsc#1143830), CVE-2019-14204 (bsc#1143831), CVE-2019-14194 (bsc#1143818), CVE-2019-14198 (bsc#1143823), CVE-2019-14195 (bsc#1143819), CVE-2019-14196 (bsc#1143820), CVE-2019-13103 (bsc#1143463), CVE-2020-8432 (bsc#1162198), CVE-2019-11059 (bsc#1134853), CVE-2019-11690 (bsc#1134157) and CVE-2020-10648 (bsc#1167209)

Record: SUSE-SU-2020:3256-1
Updated: 2026-11-02

OSVSUSE-SU-2020:3282-1 No score

Security update for u-boot

This update for u-boot fixes the following issues:

CVE-2019-14192 (bsc#1143777), CVE-2019-14193 (bsc#1143817), CVE-2019-14199 (bsc#1143824), CVE-2019-14197 (bsc#1143821), CVE-2019-14200 (bsc#1143825), CVE-2019-14201 (bsc#1143827), CVE-2019-14202 (bsc#1143828), CVE-2019-14203 (bsc#1143830), CVE-2019-14204 (bsc#1143831), CVE-2019-14194 (bsc#1143818), CVE-2019-14198 (bsc#1143823), CVE-2019-14195 (bsc#1143819), CVE-2019-14196 (bsc#1143820), CVE-2019-13103 (bsc#1143463), CVE-2020-8432 (bsc#1162198), CVE-2019-11059 (bsc#1134853), CVE-2019-11690 (bsc#1134157) and CVE-2020-10648 (bsc#1167209)

Record: SUSE-SU-2020:3282-1
Updated: 2026-11-02

OSVSUSE-SU-2020:3283-1 No score

Security update for u-boot

This update for u-boot fixes the following issues:

Fix network boot on Raspberry Pi 3 B+ (bsc#1098649)
Fix GOP pixel format (bsc#1098447)
Fix SD writes on Raspberry Pi
Enable a few more armv7 boards to boot with EFI
Fix potentially miscompiled runtime service calls

Fix CVE-2019-14192 (bsc#1143777), CVE-2019-14193 (bsc#1143817), CVE-2019-14199 (bsc#1143824), CVE-2019-14197 (bsc#1143821), CVE-2019-14200 (bsc#1143825), CVE-2019-14201 (bsc#1143827),
CVE-2019-14202 (bsc#1143828), CVE-2019-14203 (bsc#1143830), CVE-2019-14204 (bsc#1143831), CVE-2019-14194 (bsc#1143818), CVE-2019-14198 (bsc#1143823), CVE-2019-14195 (bsc#1143819), CVE-2019-14196 (bsc#1143820), CVE-2019-13103 (bsc#1143463), CVE-2020-8432 (bsc#1162198), CVE-2019-11059 (bsc#1134853), CVE-2019-11690 (bsc#1134157) and CVE-2020-10648 (bsc#1167209)

Record: SUSE-SU-2020:3283-1
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`u-boot` Debian:12	before 2020.01+dfsg-2	2020.01+dfsg-2
`u-boot` Debian:13	before 2020.01+dfsg-2	2020.01+dfsg-2
`u-boot` Debian:14	before 2020.01+dfsg-2	2020.01+dfsg-2
`u-boot` SUSE:Linux Enterprise Module for Basesystem 15 SP2	before 2020.01-10.9.1	2020.01-10.9.1
`u-boot-rpiarm64` SUSE:Linux Enterprise Module for Basesystem 15 SP2	before 2020.01-10.9.1	2020.01-10.9.1
`u-boot` SUSE:Linux Enterprise Server 12 SP5	before 2019.01-5.3.1	2019.01-5.3.1
`u-boot-rpi3` SUSE:Linux Enterprise Server 12 SP5	before 2019.01-5.3.1	2019.01-5.3.1
`u-boot` SUSE:Linux Enterprise Server for SAP Applications 12 SP5	before 2019.01-5.3.1	2019.01-5.3.1
`u-boot-rpi3` SUSE:Linux Enterprise Server for SAP Applications 12 SP5	before 2019.01-5.3.1	2019.01-5.3.1
`u-boot` SUSE:Linux Enterprise Server 12 SP4-LTSS	before 2018.03-4.3.1	2018.03-4.3.1

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Affected packages
Package	Affected	Fixed
`u-boot-rpi3` SUSE:Linux Enterprise Server 12 SP4-LTSS	before 2018.03-4.3.1	2018.03-4.3.1
`u-boot` SUSE:Linux Enterprise Module for Basesystem 15 SP1	before 2019.01-7.10.1	2019.01-7.10.1
`u-boot-rpi3` SUSE:Linux Enterprise Module for Basesystem 15 SP1	before 2019.01-7.10.2	2019.01-7.10.2
`u-boot` SUSE:Linux Enterprise High Performance Computing 15-ESPOS	before 2018.03-4.6.1	2018.03-4.6.1
`u-boot-rpi3` SUSE:Linux Enterprise High Performance Computing 15-ESPOS	before 2018.03-4.6.2	2018.03-4.6.2
`u-boot` SUSE:Linux Enterprise High Performance Computing 15-LTSS	before 2018.03-4.6.1	2018.03-4.6.1
`u-boot-rpi3` SUSE:Linux Enterprise High Performance Computing 15-LTSS	before 2018.03-4.6.2	2018.03-4.6.2
`u-boot` SUSE:Linux Enterprise Server 15-LTSS	before 2018.03-4.6.1	2018.03-4.6.1
`u-boot-rpi3` SUSE:Linux Enterprise Server 15-LTSS	before 2018.03-4.6.2	2018.03-4.6.2
`u-boot` SUSE:Linux Enterprise Server for SAP Applications 15	before 2018.03-4.6.1	2018.03-4.6.1
`u-boot` Ubuntu:18.04:LTS	before 2020.10+dfsg-1ubuntu0~18.04.2, plus listed versions 2016.03+dfsg1-6ubuntu22018.07~rc3+dfsg1-0ubuntu1~18.04.12018.07~rc3+dfsg1-0ubuntu2~18.04.12018.07~rc3+dfsg1-0ubuntu3~18.04.12019.07+dfsg-1ubuntu4~18.04.1	2020.10+dfsg-1ubuntu0~18.04.2
`u-boot` Ubuntu:20.04:LTS	before 2021.01+dfsg-3ubuntu0~20.04.3, plus listed versions 2019.07+dfsg-1ubuntu32019.07+dfsg-1ubuntu52019.07+dfsg-1ubuntu62020.10+dfsg-1ubuntu0~20.04.22021.01+dfsg-3ubuntu0~20.04.1	2021.01+dfsg-3ubuntu0~20.04.3
`u-boot` openSUSE:Leap 15.2	before 2020.01-lp152.9.9.1	2020.01-lp152.9.9.1
`u-boot` openSUSE:Leap 15.1	before 2019.01-lp151.6.13.1	2019.01-lp151.6.13.1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-8432 is a critical vulnerability (CVSS 9.8) in Denx U-boot, published January 29, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.06%, the 87th percentile. Fixed in u-boot 2020.01+dfsg-2.

References

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