CVE-2018-8011
7.5
HIGH
CVSS 3.1
EPSS 77.8%
Description
By specially crafting HTTP requests, the mod_md challenge handler would dereference a NULL pointer and cause the child process to segfault. This could be used to DoS the server. Fixed in Apache HTTP Server 2.4.34 (Affected 2.4.33).
How to fix CVE-2018-8011
To remediate CVE-2018-8011, upgrade the affected package to a fixed version below.
- Alpine/apache2—upgrade to 2.4.34-r0 or later
- Debian/apache2—upgrade to 2.4.34-1 or later
Is CVE-2018-8011 being exploited?
Likely — EPSS is 77.8%, placing CVE-2018-8011 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (2)
- from 0, < 2.4.34-r0
- from 0, < 2.4.34-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |