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Malware in pre-build binaries

Critical
justmoon published GHSA-7cgc-fjv4-52x6 May 24, 2023

Package

npm bignum (npm)

Affected versions

>=0.12.2

Patched versions

0.13.1

Description

Impact

bignum releases from v0.12.2 to v0.13.0 (inclusive) used node-pre-gyp to optionally download pre-built binary versions of the addon. These binaries were published on a now-expired S3 bucket which has since been claimed by a malicious third party which is now serving binaries containing malware that exfiltrates data from the user's computer.

Patches

v0.13.1 does not use node-pre-gyp and does not have support for downloading pre-built binaries in any form, avoiding the risk of malicious downloads.

Severity

Critical

CVE ID

No known CVE

Weaknesses

Embedded Malicious Code

The product contains code that appears to be malicious in nature. Learn more on MITRE.

Credits