Quantum Secular Labs / Blog / Advisories

CVE-2018-3767: Memcachier Memjs: Uncontrolled Resource Consumption

CVE-2018-3767 is rated critical with a CVSS v3.0 base score of 9.1 and affects Memcachier Memjs. Per its scoring, it can be exploited over the network, without authentication, without any user interaction.

Vulnerability description

`memjs` versions <= 1.1.0 allocates and stores buffers on typed input, resulting in DoS and uninitialized memory usage.

Severity breakdown

CVSS v3.0 9.1: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

  • Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
  • Attack complexity: Low. No special conditions; the attack can be repeated reliably.
  • Privileges required: None. No account or prior access is needed.
  • User interaction: None. No action from any user is needed.
  • Scope: Unchanged. Impact stays within the vulnerable component.
  • Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
  • Integrity impact: None. No loss of integrity.
  • Availability impact: High. Total loss of availability; the component can be shut down.

Underlying weakness

CWE-400: Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource.

Affected products

  • Memcachier Memjs: up to and including 1.1.0

References