CVE-2018-1171: joyent joyent smartos Out-of-bounds Write

Vulnerability summary

CVE-2018-1171 is a high (CVSS 7.0) Out-of-bounds Write vulnerability in joyent joyent smartos. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 37.2% of scored vulnerabilities.

Timeline

1. 19-03-2018
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

Description

This vulnerability allows local attackers to escalate privileges on vulnerable installations of Joyent SmartOS release-20170803-20170803T064301Z. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the DTrace DOF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated object. An attacker can leverage this vulnerability to execute code under the context of the host OS. Was ZDI-CAN-5106.

• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.