CVE-2025-25186
Net::IMAP vulnerable to possible DoS by memory exhaustion
- State
- Published
- Severity
- 6.5 Medium
- Published
- Feb 10, 2025
- Updated
- Feb 12, 2025
- Reserved
- Feb 3, 2025
Description
Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Starting in version 0.3.2 and prior to versions 0.3.8, 0.4.19, and 0.5.6, there is a possibility for denial of service by memory exhaustion in `net-imap`'s response parser. At any time while the client is connected, a malicious server can send can send highly compressed `uid-set` data which is automatically read by the client's receiver thread. The response parser uses `Range#to_a` to convert the `uid-set` data into arrays of integers, with no limitation on the expanded size of the ranges. Versions 0.3.8, 0.4.19, 0.5.6, and higher fix this issue. Additional details for proper configuration of fixed versions and backward compatibility are available in the GitHub Security Advisory.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | GitHub_M |
Weaknesses
- CWE-400 Uncontrolled Resource Consumption
- CWE-405 Asymmetric Resource Consumption (Amplification)
- CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)
- CWE-770 Allocation of Resources Without Limits or Throttling
- CWE-789 Memory Allocation with Excessive Size Value
- CWE-1287 Improper Validation of Specified Type of Input
Affected Products
| Product | Versions |
|---|---|
net-imapruby |
|
References
- https://github.com/ruby/net-imap/security/advisories/GHSA-7fc5-f82f-cx69
- https://github.com/ruby/net-imap/commit/70e3ddd071a94e450b3238570af482c296380b35
- https://github.com/ruby/net-imap/commit/c8c5a643739d2669f0c9a6bb9770d0c045fd74a3
- https://github.com/ruby/net-imap/commit/cb92191b1ddce2d978d01b56a0883b6ecf0b1022
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