CVE-2024-42460 Elliptic's ECDSA missing check for whether leading bit of r and s is zero

What is CVE-2024-42460?

CVE-2024-42460 is a medium-severity vulnerability in n/a, published on 2 Aug 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In the Elliptic package 6.5.6 for Node.js, ECDSA signature malleability occurs because there is a missing check for whether the leading bit of r and s is zero.

Weakness: CWE-130

Which versions are affected by CVE-2024-42460?

2 open source packages ship an affected version, including elliptic. It affects 1 product.

Products include Indutny Elliptic.

How do I fix CVE-2024-42460?

Upgrade elliptic to 6.5.7 or later.

Is CVE-2024-42460 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-42460 exists.

Other vulnerabilities in n/a

• CVE-2024-48949 Elliptic's verify function omits uniqueness validation Critical 9.1
• CVE-2020-13822 Signature Malleabillity in elliptic High 7.7
• CVE-2020-28498 Cryptographic Issues Medium 6.8
• CVE-2024-42459 Elliptic's EDDSA missing signature length check Medium 5.3
• CVE-2024-48948 Valid ECDSA signatures erroneously rejected in Elliptic Medium 4.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-47430, DEBIAN-CVE-2024-42460, GHSA-977x-g7h5-7qgw, UBUNTU-CVE-2024-42460.