A buffer over-read vulnerability exists in bl <4.0.3, <3.0.1, <2.2.1, and <1.2.3 which could allow an attacker to supply user input (even typed) that if it ends up in consume() argument and can become negative, the BufferList state can be corrupted, tricking it into exposing uninitialized memory via regular .slice() calls.
CVE-2020-8244 - Medium Severity Vulnerability
Buffer List: collect buffers and access with a standard readable Buffer interface, streamable too!
Library home page: https://registry.npmjs.org/bl/-/bl-1.1.2.tgz
Dependency Hierarchy: - gitbook-cli-2.3.2.tgz (Root Library) - npmi-1.0.1.tgz - npm-2.15.12.tgz - request-2.74.0.tgz - :x: **bl-1.1.2.tgz** (Vulnerable Library)
Found in HEAD commit: 57add7b0a1f99c21ea28094adb747d0addd0a984
Found in base branch: master
A buffer over-read vulnerability exists in bl <4.0.3, <3.0.1, <2.2.1, and <1.2.3 which could allow an attacker to supply user input (even typed) that if it ends up in consume() argument and can become negative, the BufferList state can be corrupted, tricking it into exposing uninitialized memory via regular .slice() calls.
Publish Date: 2020-08-30
URL: CVE-2020-8244
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: Low - Integrity Impact: None - Availability Impact: Low
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://github.com/advisories/GHSA-pp7h-53gx-mx7r
Release Date: 2020-08-30
Fix Resolution: bl - 1.2.3,2.2.1,3.0.1,4.0.3