CWE-385

Covert Timing Channel

Covert timing channels convey information by modulating some aspect of system behavior over time, so that the program receiving the information can observe system behavior and infer protected information.

CVE-2025-0306 (GCVE-0-2025-0306)
Vulnerability from cvelistv5
Published
2025-01-09 04:05
Modified
2025-09-12 20:06
CWE
Summary
A vulnerability was found in Ruby. The Ruby interpreter is vulnerable to the Marvin Attack. This attack allows the attacker to decrypt previously encrypted messages or forge signatures by exchanging a large number of messages with the vulnerable service.
References
https://access.redhat.com/security/cve/CVE-2025-0306vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2336100issue-tracking, x_refsource_REDHAT
Impacted products
Show details on NVD website


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CVE-2025-49087 (GCVE-0-2025-49087)
Vulnerability from cvelistv5
Published
2025-07-20 00:00
Modified
2025-07-21 20:37
CWE
Summary
In Mbed TLS 3.6.1 through 3.6.3 before 3.6.4, a timing discrepancy in block cipher padding removal allows an attacker to recover the plaintext when PKCS#7 padding mode is used.
Impacted products
Vendor Product Version
Mbed mbedtls Version: 3.6.1   < 3.6.4
Create a notification for this product.
Show details on NVD website


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CVE-2025-53826 (GCVE-0-2025-53826)
Vulnerability from cvelistv5
Published
2025-07-15 18:12
Modified
2025-07-15 18:37
CWE
  • CWE-305 - Authentication Bypass by Primary Weakness
  • CWE-385 - Covert Timing Channel
  • CWE-613 - Insufficient Session Expiration
Summary
File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename, and edit files. In version 2.39.0, File Browser’s authentication system issues long-lived JWT tokens that remain valid even after the user logs out. As of time of publication, no known patches exist.
Impacted products
Vendor Product Version
filebrowser filebrowser Version: = 2.39.0
Create a notification for this product.
Show details on NVD website


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Mitigation

Phase: Architecture and Design

Description:

  • Whenever possible, specify implementation strategies that do not introduce time variances in operations.
Mitigation

Phase: Implementation

Description:

  • Often one can artificially manipulate the time which operations take or -- when operations occur -- can remove information from the attacker.
Mitigation

Phase: Implementation

Description:

  • It is reasonable to add artificial or random delays so that the amount of CPU time consumed is independent of the action being taken by the application.
CAPEC-462: Cross-Domain Search Timing

An attacker initiates cross domain HTTP / GET requests and times the server responses. The timing of these responses may leak important information on what is happening on the server. Browser's same origin policy prevents the attacker from directly reading the server responses (in the absence of any other weaknesses), but does not prevent the attacker from timing the responses to requests that the attacker issued cross domain.

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