PT-2025-3822 · Ruby+2 · Ruby+2

Alicja Kario · CVE-2025-0306 · Published 2024-06-24 · Updated 2026-06-30

Positive Technologies (AI Summary)

CVSS v3.1

7.4

High

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions Ruby (affected versions not specified)

Description The Ruby interpreter is susceptible to the Marvin Attack, which leverages a covert timing channel to transmit data. This issue allows a remote attacker to decrypt previously encrypted messages or forge signatures by exchanging a large volume of messages with the vulnerable service.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-385

Related Identifiers

BDU:2025-03806

CVE-2025-0306

ECHO-B7C4-802B-2605

Affected Products

Debian

Red Os

Ruby

References · 20

• https://nvd.nist.gov/vuln/detail/CVE-2025-0306 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-0306 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-0306 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-03806 · Security Note
• http://repo.red-soft.ru/redos/7.3c/x86_64/updates · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-0306 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-0306 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-0306 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-0306 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2336100 · Note
• https://t.me/cveNotify/179396 · Telegram Post
• https://t.me/latest_high_impact_cve/1755 · Telegram Post
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti/uyazvimost-ruby-cve-2025-0306 · Note
• https://redos.red-soft.ru/support/secure/uyazvimosti/uyazvimost-ruby-cve-2025-0306 · Note
• https://twitter.com/CVEnew/status/1877256324528103698 · Twitter Post