Vulnerability in Re2c
CVE-2018-21232
re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.015 (72.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 72.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.015 · change: +0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/skvadrik/re2c/issues/219 (Exploit, Patch, Third Party Advisory)
- www.openwall.com/lists/oss-security/2020/04/27/2 (Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2020/05/14/4 (mailing-list)
Frequently asked questions
- What is CVE-2018-21232?
- CVE-2018-21232 is a medium-severity vulnerability in Re2c, classified under Uncontrolled Recursion. CVSS score: 5.5/10. Published 2020-04-29.
- How severe is CVE-2018-21232?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2018-21232 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.