CVE-2020-8244 (Medium) detected in multiple libraries

[mend-bolt-for-github]

CVE-2020-8244 - Medium Severity Vulnerability

Vulnerable Libraries - bl-1.2.2.tgz, bl-4.0.2.tgz, bl-3.0.0.tgz

bl-1.2.2.tgz

Buffer List: collect buffers and access with a standard readable Buffer interface, streamable too!

Library home page: https://registry.npmjs.org/bl/-/bl-1.2.2.tgz

Path to dependency file: /deps/npm/docs/package.json

Path to vulnerable library: /deps/npm/docs/package.json

Dependency Hierarchy:

• gatsby-plugin-prefetch-google-fonts-1.4.3.tgz (Root Library)
  • download-7.1.0.tgz
    • decompress-4.2.0.tgz
      • decompress-tar-4.1.1.tgz
        • tar-stream-1.6.2.tgz
          • ❌ bl-1.2.2.tgz (Vulnerable Library)

bl-4.0.2.tgz

Buffer List: collect buffers and access with a standard readable Buffer interface, streamable too!

Library home page: https://registry.npmjs.org/bl/-/bl-4.0.2.tgz

Path to dependency file: /deps/npm/docs/package.json

Path to vulnerable library: /deps/npm/docs/package.json

Dependency Hierarchy:

• gatsby-2.23.20.tgz (Root Library)
  • st-2.0.0.tgz
    • ❌ bl-4.0.2.tgz (Vulnerable Library)

bl-3.0.0.tgz

Buffer List: collect buffers and access with a standard readable Buffer interface, streamable too!

Library home page: https://registry.npmjs.org/bl/-/bl-3.0.0.tgz

Path to dependency file: /deps/npm/docs/package.json

Path to vulnerable library: /deps/npm/docs/package.json

Dependency Hierarchy:

• snyk-1.437.3.tgz (Root Library)
  • snyk-docker-plugin-4.13.1.tgz
    • tar-stream-2.1.0.tgz
      • ❌ bl-3.0.0.tgz (Vulnerable Library)

Found in HEAD commit: 00fdb00d5bdbaea4fec4642989374d82cbdb1a3c

Found in base branch: master

Vulnerability Details

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

CVSS 3 Score Details (6.5)

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.

Suggested Fix

Type: Upgrade version

Origin: GHSA-pp7h-53gx-mx7r

Release Date: 2020-08-30

Fix Resolution (bl): 1.2.3

Direct dependency fix Resolution (gatsby): 2.23.21-oom-exit-code.13

Fix Resolution (bl): 1.2.3

Direct dependency fix Resolution (snyk): 1.437.4

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[mend-bolt-for-github]

✔️ This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.

[mend-bolt-for-github]

ℹ️ This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.