CVE-2020-36177

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Published Jan 6, 2021 CVSS 3.1 · 9.8 Critical EPSS 3.6% KEV · Not listed

Description

RsaPad_PSS in wolfcrypt/src/rsa.c in wolfSSL before 4.6.0 has an out-of-bounds write for certain relationships between key size and digest size.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2020-23755	RsaPad_PSS in wolfcrypt/src/rsa.c in wolfSSL before 4.6.0 has an out-of-bounds write for certain relationships between key size and digest size.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

Exploit prediction score: 3.6% (3.567% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26567
https://github.com/wolfSSL/wolfssl/commit/63bf5dc56ccbfc12a73b06327361687091a4c6f7
https://github.com/wolfSSL/wolfssl/commit/fb2288c46dd4c864b78f00a47a364b96a09a5c0f
https://github.com/wolfSSL/wolfssl/pull/3426
https://github.com/wolfSSL/wolfssl/releases/tag/v4.6.0-stable

History

No history.

Subscriptions

Wolfssl Wolfssl

Weaknesses

CWE-787

Sources

CVE record Updated: Aug 4, 2024, 5:23 PM

Status: PUBLISHED
Assigner: mitre
Published: Jan 6, 2021, 3:54 PM
Updated: Aug 4, 2024, 5:23 PM
Reserved: Jan 6, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:14 AM

Status: Modified
Published: Jan 6, 2021, 4:15 PM
Modified: Jun 17, 2026, 3:14 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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