CVE-2018-8011

mod_md, DoS via Coredumps on specially crafted requests

published July 18, 2018

Patch now

High probability of exploitation

NVD has not assigned a CVSS score to this record. It sits in the 99.0th percentile for exploit probability.

CVSS
—
EPSS
56%
Percentile
99.0
In the wild
Unconfirmed
What it is

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).

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.55608 · 99.0th percentile
Published
2018-07-18T14:00Z
EPSS history
Timeline
  • 22 SEP 03:16Z
    EPSS moved 56% → 77%
    epss
  • 06 SEP 03:12Z
    EPSS moved 56% → 77%
    epss
  • 30 AUG 16:01Z
    EPSS moved 77% → 56%
    epss
  • 29 AUG 04:42Z
    EPSS moved 56% → 77%
    epss
  • 18 JUL 14:00Z
    mod_md, DoS via Coredumps on specially crafted requests
    cvelistv5