CVE-2018-1165

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 SMB_IOC_SVCENUM IOCTL. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length, heap-based buffer. An attacker can leverage this vulnerability to execute code under the context of the host OS. Was ZDI-CAN-4983.

Weakness classification

• CWE-122: Heap-based Buffer Overflow
• CWE-787: Out-of-bounds Write

Primary references

• zdi-disclosures@trendmicro.com — Vendor Advisory
• zdi-disclosures@trendmicro.com — Third Party Advisory
• zdi-disclosures@trendmicro.com — Third Party Advisory, VDB Entry
• af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry