wolfSSL up to 4.5.x Digest wolfcrypt/src/rsa.c RsaPad_PSS out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in wolfSSL up to 4.5.x. This issue affects the function RsaPad_PSS of the file wolfcrypt/src/rsa.c of the component Digest Handler. The manipulation results in out-of-bounds write. This vulnerability was named CVE-2020-36177. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in wolfSSL up to 4.5.x. Affected is the function RsaPad_PSS of the file wolfcrypt/src/rsa.c of the component Digest Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 01/07/2021. The advisory is available at bugs.chromium.org. This vulnerability is traded as CVE-2020-36177. Technical details are known, but there is no available exploit.

Upgrading to version 4.6.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: wolfSSL 4.6.0
Patch: github.com

Timelineinfo

01/07/2021 🔍
01/07/2021 +0 days 🔍
01/07/2021 +0 days 🔍

Sourcesinfo

Product: github.com

Advisory: bugs.chromium.org
Status: Confirmed

CVE: CVE-2020-36177 (🔍)
GCVE (CVE): GCVE-0-2020-36177
GCVE (VulDB): GCVE-100-167358

Entryinfo

Created: 01/07/2021 07:01
Changes: 01/07/2021 07:01 (41)
Complete: 🔍
Cache ID: 216::103

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