CVE-2017-14064

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.

CVSS v3.0

9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

9.45% chance of exploitation in the next 30 days, 95th percentile

Published

2017-08-31

Updated

2024-08-05

Proof-of-concept exploits (1)

• https://hackerone.com/reports/209949

References

• CVE Record
• NVD entry

Related

• CVE-2017-14042
• CVE-2017-14075
• CVE-2017-14034
• CVE-2017-14083
• CVE-2017-14016
• CVE-2017-14084