CVE-2018-21232: Medium severity re2c re2c vulnerability
re2c before 2.0 has uncontrolled recursion that causes stack consumption in findfixedtags.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/re2cto a version that resolves this vulnerability.Fixed in 3.1-1 - Upgrade
Upgrade
debian/re2cto a version that resolves this vulnerability.Fixed in 4.1-1Fixed in 4.6-1 - Upgrade
Upgrade
re2cto a version that resolves this vulnerability.Fixed in 2.0
Event History
Frequently Asked Questions
What is the severity of CVE-2018-21232?
CVE-2018-21232 is considered a high severity vulnerability due to its potential for causing denial of service through stack exhaustion.
How do I fix CVE-2018-21232?
To fix CVE-2018-21232, update to re2c version 2.0 or later, which addresses the uncontrolled recursion issue.
What software is affected by CVE-2018-21232?
CVE-2018-21232 affects re2c versions prior to 2.0.
What types of attacks can exploit CVE-2018-21232?
CVE-2018-21232 can be exploited through crafted input that triggers the uncontrolled recursion, leading to stack consumption.
Is CVE-2018-21232 still a risk if I have version 2.0 or later?
No, if you are using re2c version 2.0 or later, you are not at risk from CVE-2018-21232.