Search for vulnerabilities
Vulnerability details: VCID-fe6e-xrdj-aaak
Vulnerability ID VCID-fe6e-xrdj-aaak
Aliases CVE-2018-8011
Summary 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).
Status Published
Exploitability 2.0
Weighted Severity 6.8
Risk 10.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-476 NULL Pointer Dereference
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-8011.html
cvssv3 5.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-8011.json
epss 0.33379 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.38968 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.38968 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39317 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.39729 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.49981 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.57552 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.57552 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.57552 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.94894 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.94894 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.94894 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.94894 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.94894 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.94894 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.94894 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.94894 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.94894 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
epss 0.94894 https://api.first.org/data/v1/epss?cve=CVE-2018-8011
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1605052
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8011
cvssv3 5.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
apache_httpd moderate https://httpd.apache.org/security/json/CVE-2018-8011.json
generic_textual Medium https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2018-8011
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2018-8011
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-8011
archlinux Medium https://security.archlinux.org/AVG-736
generic_textual Medium http://www.openwall.com/lists/oss-security/2018/07/18/2
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-8011.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-8011.json
https://api.first.org/data/v1/epss?cve=CVE-2018-8011
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8011
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2018-8011
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rd2fb621142e7fa187cfe12d7137bf66e7234abcbbcd800074c84a538@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rd2fb621142e7fa187cfe12d7137bf66e7234abcbbcd800074c84a538%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/re473305a65b4db888e3556e4dae10c2a04ee89dcff2e26ecdbd860a9@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/re473305a65b4db888e3556e4dae10c2a04ee89dcff2e26ecdbd860a9%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
https://security.netapp.com/advisory/ntap-20180926-0007/
http://www.openwall.com/lists/oss-security/2018/07/18/2
http://www.securitytracker.com/id/1041401
1605052 https://bugzilla.redhat.com/show_bug.cgi?id=1605052
904107 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=904107
ASA-201807-12 https://security.archlinux.org/ASA-201807-12
AVG-736 https://security.archlinux.org/AVG-736
cpe:2.3:a:apache:http_server:2.4.33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.33:*:*:*:*:*:*:*
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
CVE-2018-8011 https://httpd.apache.org/security/json/CVE-2018-8011.json
CVE-2018-8011 https://nvd.nist.gov/vuln/detail/CVE-2018-8011
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-8011.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-8011
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-8011
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.95201
EPSS Score 0.33379
Published At March 29, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.