CVE-2023-39910Not scoredCWE-338

CVE-2023-39910: Libbitcoin Explorer vulnerability

Libbitcoin · Libbitcoin Explorer

Affected: Libbitcoin Explorer · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

1.8%probability of exploitation in the next 30 days

78th percentile

050100

Higher than 78% of scored CVEs

Not scored yet. The CVE record carries no CVSS score.

DescriptionCVE.org

The cryptocurrency wallet entropy seeding mechanism used in Libbitcoin Explorer 3.0.0 through 3.6.0 is weak, aka the Milk Sad issue. The use of an mt19937 Mersenne Twister PRNG restricts the internal entropy to 32 bits regardless of settings. This allows remote attackers to recover any wallet private keys generated from "bx seed" entropy output and steal funds. (Affected users need to move funds to a secure new cryptocurrency wallet.) NOTE: the vendor's position is that there was sufficient documentation advising against "bx seed" but others disagree. NOTE: this was exploited in the wild in June and July 2023.

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Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) · Cryptography
Published: August 2023
Band: Possible (1 to 10%), August 2023

CoverageNo articles yet

No CyberSIXT article names CVE-2023-39910 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.