WS-2020-0368 (Medium) detected in zlib-sync0.1.4, erlpack0.1.4

[ioanaghews]

WS-2020-0368 - Medium Severity Vulnerability

Vulnerable Libraries - zlib-sync0.1.4, erlpack0.1.4

Vulnerability Details

Zlib in versions v0.8 to v1.2.11 is vulnerable to use-of-uninitialized-value in inflate.
There are a couple of places in inflate() where UPDATE is called with state->check as its first parameter, without a guarantee that this value has been initialized (state comes from a ZALLOC in inflateInit). This causes use of uninitialized check value.

Publish Date: 2020-02-22

URL: WS-2020-0368

CVSS 3 Score Details (6.5)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.