VDB-157124 · CVE-2020-14967 · GCVE-0-2020-14967

jsrsasign Package up to 8.0.17 on Node.js RSA PKCS1 memory corruption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.2	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in jsrsasign Package up to 8.0.17 on Node.js. Affected by this vulnerability is an unknown functionality of the component RSA PKCS1 Handler. Such manipulation leads to memory corruption. This vulnerability is traded as CVE-2020-14967. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in jsrsasign Package up to 8.0.17 on Node.js (JavaScript Library). Affected by this issue is some unknown functionality of the component RSA PKCS1 Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is integrity, and availability. CVE summarizes:

An issue was discovered in the jsrsasign package before 8.0.18 for Node.js. Its RSA PKCS1 v1.5 decryption implementation does not detect ciphertext modification by prepending '\0' bytes to ciphertexts (it decrypts modified ciphertexts without error). An attacker might prepend these bytes with the goal of triggering memory corruption issues.

The weakness was shared 06/22/2020. This vulnerability is handled as CVE-2020-14967 since 06/22/2020. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 8.0.18 eliminates this vulnerability.

The entries VDB-157125 and VDB-157123 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

JavaScript Library

Name

jsrsasign Package

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.2

VulDB Base Score: 4.8
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: jsrsasign Package 8.0.18

Timelineinfo

06/22/2020 🔍
06/22/2020 +0 days 🔍
06/23/2020 +1 days 🔍
06/22/2026 +2190 days 🔍

Sourcesinfo

Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-14967 (🔍)
GCVE (CVE): GCVE-0-2020-14967
GCVE (VulDB): GCVE-100-157124
See also: 🔍

Entryinfo

Created: 06/23/2020 09:47
Updated: 06/22/2026 13:03
Changes: 06/23/2020 09:47 (39), 06/23/2020 09:52 (18), 10/26/2020 13:52 (1), 06/22/2026 13:03 (20)
Complete: 🔍
Cache ID: 216::103