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

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.016 (74.8th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-23901: held from 0.016 to 0.016.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

  • Re2c — versions 2.2

Weakness classification (CWE)

References

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.