Use After Free in Creolabs Gravity

CVE-2017-1000172

Creolabs Gravity Version: 1.0 Use-After-Free Possible code execution. An example of a Heap-Use-After-Free after the 'sublexer' pointer has been freed. Line 542 of gravity_lexer.c. 'lexer' is being used to access a variable but 'lexer' has already been freed, creating a Heap Use-After-Free condition.

Vulnerability class: Use-After-Free

EPSS: 0.024 (82.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-1000172?
CVE-2017-1000172 is a critical-severity vulnerability in Creolabs Gravity, classified under Use After Free. CVSS score: 9.8/10. Published 2017-11-17.
How severe is CVE-2017-1000172?
Critical severity. CVSS v3 base score is 9.8 out of 10.