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CVE-2018-8011

mod_md, DoS via Coredumps on specially crafted requests

N/A
Published: July 18, 2018 at 02:00 PM UTC
Updated: June 17, 2026 at 02:04 AM UTC
2 products affected across 2 vendorsHTTP ServerCloud Backup

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Severity
N/A
Exploit prediction
EPSS 56%

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).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

HTTP Server· Apache
95%
2.4.33
Vendor states this is fixed in 2.4.34 (unaffected)
Cloud Backup· NetAppdrupal
95%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (15)

VDB Entryx_refsource_SECTRACKThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1041401
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2018-8011
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d%40%3Ccvs.httpd.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E

CVSS

5MEDIUM[email protected]
Confidentiality
NONE
Integrity
NONE
Availability
PARTIAL
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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