Buffer overflow in Joyent Smartos
CVE-2018-1165
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (42.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Joyent Smartos — versions release-20170803-20170803T064301Z
- Joyent Smartos — versions 20170803
- Oracle Solaris — versions 11
- Oracle Zfs Storage Appliance — versions 8.8
Weakness classification (CWE)
References
- help.joyent.com/hc/en-us/articles/360000124928 (Vendor Advisory)
- zerodayinitiative.com/advisories/ZDI-18-158 (VDB Entry, Third Party Advisory)
- www.oracle.com/security-alerts/cpuapr2020.html (Third Party Advisory)
Frequently asked questions
- What is CVE-2018-1165?
- CVE-2018-1165 is a high-severity vulnerability in Joyent Smartos, classified under Heap-based Buffer Overflow. CVSS score: 7.0/10. Published 2018-02-21.
- How severe is CVE-2018-1165?
- High severity. CVSS v3 base score is 7.0 out of 10.