CVE-2017-14064

ruby: Arbitrary heap exposure during a JSON.generate call

Published Aug 31, 2017 CVSS 3.0 · 9.8 Critical EPSS 9.4% KEV · Not listed
Description
Ruby through 2.2.7, 2.3.x through 2.3.4, and 2.4.x through 2.4.1 can expose arbitrary memory during a JSON.generate call. The issues lies in using strdup in ext/json/ext/generator/generator.c, which will stop after encountering a '\0' byte, returning a pointer to a string of length zero, which is not the length stored in space_len.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1114-1 ruby1.9.1 security update
Debian DLA Debian DLA DLA-1421-1 ruby2.1 security update
Debian DSA Debian DSA DSA-3966-1 ruby2.3 security update
EUVD EUVD EUVD-2017-5577 Ruby through 2.2.7, 2.3.x through 2.3.4, and 2.4.x through 2.4.1 can expose arbitrary memory during a JSON.generate call. The issues lies in using strdup in ext/json/ext/generator/generator.c, which will stop after encountering a '\0' byte, returning a pointer to a string of length zero, which is not the length stored in space_len.
Ubuntu USN Ubuntu USN USN-3439-1 Ruby vulnerabilities
Ubuntu USN Ubuntu USN USN-3528-1 Ruby vulnerabilities
Ubuntu USN Ubuntu USN USN-3685-1 Ruby vulnerabilities
History

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