Buffer overflow in Re2c

CVE-2022-23901

A stack overflow re2c 2.2 exists due to infinite recursion issues in src/dfa/dead_rules.cc.

Vulnerability class: Buffer Overflow

EPSS: 0.016 (73.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Re2c — versions 2.2
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2022-23901?: CVE-2022-23901 is a critical-severity vulnerability in Re2c, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-03-29.
How severe is CVE-2022-23901?: Critical severity. CVSS v3 base score is 9.8 out of 10.