CVE-2023-6992 (Medium) detected in cloudflare-zlib-sys-0.2.0.crate

[mend-bolt-for-github]

CVE-2023-6992 - Medium Severity Vulnerability

Vulnerable Library - cloudflare-zlib-sys-0.2.0.crate

Cloudflare fork of zlib with massive performance improvements

Library home page: https://crates.io/api/v1/crates/cloudflare-zlib-sys/0.2.0/download

Path to dependency file: /third_party/rust_crates/vendor/flate2/Cargo.toml

Path to vulnerable library: /third_party/rust_crates/vendor/flate2/Cargo.toml

Dependency Hierarchy:

• ❌ cloudflare-zlib-sys-0.2.0.crate (Vulnerable Library)

Found in HEAD commit: 4ec0c406a28f193fe6e7376ee7696cca0532d4ba

Found in base branch: master

Vulnerability Details

Cloudflare version of zlib library was found to be vulnerable to memory corruption issues affecting the deflation algorithm implementation (deflate.c). The issues resulted from improper input validation and heap-based buffer overflow.
A local attacker could exploit the problem during compression using a crafted malicious file potentially leading to denial of service of the software.
Patches: The issue has been patched in commit 8352d10 cloudflare/zlib@8352d10 . The upstream repository is not affected.

Publish Date: 2024-01-04

URL: CVE-2023-6992

CVSS 3 Score Details (4.0)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Local
  • Attack Complexity: High
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: Low
  • Availability Impact: Low

For more information on CVSS3 Scores, click here.

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