CVE-2018-9862

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-04-09 · updated 2026-06-17
Weakness: CWE-838

Description

util.c in runV 1.0.0 for Docker mishandles a numeric username, which allows attackers to obtain root access by leveraging the presence of an initial numeric value on an /etc/passwd line, and then issuing a "docker exec" command with that value in the -u argument, a similar issue to CVE-2016-3697.

Affected products

Hyper Runv: 1.0.0

References

http://www.securityfocus.com/bid/103738
https://github.com/hyperhq/hyperstart/pull/348
http://www.securityfocus.com/bid/103738
https://github.com/hyperhq/hyperstart/pull/348

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