Is CVE-2020-8432 in the CISA KEV catalog?

No. CVE-2020-8432 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-8432?

CVE-2020-8432 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2020-8432?

CVE-2020-8432 has an EPSS score of 3.70% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-8432?

Upgrade u-boot on debian 11 to 2020.01+dfsg-2 or later.

CVE & CISA-KEV Catalog

CVE-2020-8432

CRITICALEPSS 88th pctl

9.8

CVSS v3

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.

CWE-415 CWE-787Out-of-bounds Write

How to fix

Remediation Available

u-bootDebian

Fixed in:2020.01+dfsg-2CVE-2020-8432

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

3.70%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Third-Party Advisory1

lists.opensuse.org

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.