CVE-2018-21232 : re2c before 2.0 has uncontrolled recursion that causes stack consumption in find

re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.

Published 2020-04-29 14:15:14

Updated 2020-05-14 12:15:12

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2018-21232

Re2c » Re2c
Versions before (<) 2.0
cpe:2.3:a:re2c:re2c:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.04%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 9 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:N/A:P	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
5.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	1.8	3.6	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE-674 Uncontrolled Recursion

The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

Assigned by: nvd@nist.gov (Primary)

https://www.openwall.com/lists/oss-security/2020/04/27/2

oss-security - re2c: infinite loop
Mailing List;Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/05/14/4

oss-security - Re: re2c: infinite loop
https://github.com/skvadrik/re2c/issues/219

overflow-1.re test fails on system with small stack · Issue #219 · skvadrik/re2c · GitHub
Exploit;Patch;Third Party Advisory

Jump to