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Vulnerability details: VCID-g832-nnp6-aaas
Vulnerability ID VCID-g832-nnp6-aaas
Aliases CVE-2018-1303
Summary A specially crafted HTTP request header could have crashed the Apache HTTP Server prior to version 2.4.30 due to an out of bound read while preparing data to be cached in shared memory. It could be used as a Denial of Service attack against users of mod_cache_socache. The vulnerability is considered as low risk since mod_cache_socache is not widely used, mod_cache_disk is not concerned by this vulnerability.
Status Published
Exploitability 2.0
Weighted Severity 9.0
Risk 10.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-125 Out-of-bounds Read
System Score Found at
generic_textual Low http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-1303.html
cvssv3.1 9.8 https://access.redhat.com/errata/RHSA-2018:3558
generic_textual CRITICAL https://access.redhat.com/errata/RHSA-2018:3558
rhas Important https://access.redhat.com/errata/RHSA-2019:0366
rhas Important https://access.redhat.com/errata/RHSA-2019:0367
rhas Moderate https://access.redhat.com/errata/RHSA-2020:3958
cvssv3 5.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-1303.json
epss 0.06926 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.06926 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.06926 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.06926 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.06926 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.31173 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.50131 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.94615 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.94615 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.94615 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.95215 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.95786 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.95786 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.95786 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.95786 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.95786 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.95786 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.95786 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.95786 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
epss 0.95786 https://api.first.org/data/v1/epss?cve=CVE-2018-1303
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1560399
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15710
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15715
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1283
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1301
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1303
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1312
cvssv3 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
apache_httpd low https://httpd.apache.org/security/json/CVE-2018-1303.json
cvssv3.1 7.5 https://httpd.apache.org/security/vulnerabilities_24.html
generic_textual HIGH https://httpd.apache.org/security/vulnerabilities_24.html
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2018-1303
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-1303
archlinux Medium https://security.archlinux.org/AVG-664
generic_textual Low https://ubuntu.com/security/notices/USN-3627-1
generic_textual Low https://ubuntu.com/security/notices/USN-3627-2
cvssv3.1 8.8 https://www.tenable.com/security/tns-2019-09
generic_textual HIGH https://www.tenable.com/security/tns-2019-09
generic_textual Low http://www.openwall.com/lists/oss-security/2018/03/24/3
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-1303.html
https://access.redhat.com/errata/RHSA-2018:3558
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-1303.json
https://api.first.org/data/v1/epss?cve=CVE-2018-1303
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15710
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15715
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1283
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1301
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1303
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1312
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://httpd.apache.org/security/vulnerabilities_24.html
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/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/r15f9aa4427581a1aecb4063f1b4b983511ae1c9935e2a0a6876dad3c@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r15f9aa4427581a1aecb4063f1b4b983511ae1c9935e2a0a6876dad3c%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/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://lists.apache.org/thread.html/rfcf929bd33a6833e3f0c35eebdad70d5060665f9c4e17ea467c66770@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rfcf929bd33a6833e3f0c35eebdad70d5060665f9c4e17ea467c66770%40%3Ccvs.httpd.apache.org%3E
https://security.netapp.com/advisory/ntap-20180601-0004/
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us
https://ubuntu.com/security/notices/USN-3627-1
https://ubuntu.com/security/notices/USN-3627-2
https://usn.ubuntu.com/3627-1/
https://usn.ubuntu.com/3627-2/
https://www.debian.org/security/2018/dsa-4164
https://www.tenable.com/security/tns-2019-09
http://www.openwall.com/lists/oss-security/2018/03/24/3
http://www.securityfocus.com/bid/103522
http://www.securitytracker.com/id/1040572
1560399 https://bugzilla.redhat.com/show_bug.cgi?id=1560399
ASA-201804-4 https://security.archlinux.org/ASA-201804-4
AVG-664 https://security.archlinux.org/AVG-664
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
cpe:2.3:a:netapp:santricity_cloud_connector:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:santricity_cloud_connector:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:storage_automation_store:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:storage_automation_store:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
CVE-2018-1303 https://httpd.apache.org/security/json/CVE-2018-1303.json
CVE-2018-1303 https://nvd.nist.gov/vuln/detail/CVE-2018-1303
RHSA-2019:0366 https://access.redhat.com/errata/RHSA-2019:0366
RHSA-2019:0367 https://access.redhat.com/errata/RHSA-2019:0367
RHSA-2020:3958 https://access.redhat.com/errata/RHSA-2020:3958
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/errata/RHSA-2018:3558
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://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-1303.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:H 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: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://httpd.apache.org/security/vulnerabilities_24.html
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-2018-1303
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-2018-1303
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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://www.tenable.com/security/tns-2019-09
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 0.90926
EPSS Score 0.06926
Published At May 1, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.