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Vulnerability details: VCID-mdun-23uj-aaap
Vulnerability ID VCID-mdun-23uj-aaap
Aliases CVE-2016-2161
Summary In Apache HTTP Server versions 2.4.0 to 2.4.23, malicious input to mod_auth_digest can cause the server to crash, and each instance continues to crash even for subsequently valid requests.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-20 Improper Input Validation
System Score Found at
generic_textual Low http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2161.html
rhas Moderate https://access.redhat.com/errata/RHSA-2017:0906
rhas Important https://access.redhat.com/errata/RHSA-2017:1413
rhas Important https://access.redhat.com/errata/RHSA-2017:1414
rhas Important https://access.redhat.com/errata/RHSA-2017:1415
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-2161.json
epss 0.02809 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.02958 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.02958 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.02958 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.02958 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.02958 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.02958 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.02958 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.02958 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.02958 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.03927 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.03927 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.03927 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.1094 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.1094 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.1094 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.18826 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.18826 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.24446 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.24446 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.24446 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.30035 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.33001 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.33001 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.33001 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.3933 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.3933 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.3933 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.3933 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.3933 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.3933 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.3933 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.3933 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.3933 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.3933 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.41725 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.41725 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.41725 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.41725 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.41725 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.41725 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1406753
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0736
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2161
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8743
cvssv2 4.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
apache_httpd low https://httpd.apache.org/security/json/CVE-2016-2161.json
cvssv3.1 7.5 https://httpd.apache.org/security/vulnerabilities_24.html
generic_textual HIGH https://httpd.apache.org/security/vulnerabilities_24.html
generic_textual Medium https://lists.apache.org/thread.html/139862b41c0dfd5e6e00ad89c00119f9faf0dd41a2f927da9c9a4076@%3Cannounce.httpd.apache.org%3E
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2016-2161
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2016-2161
generic_textual Medium https://ubuntu.com/security/notices/USN-3279-1
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2161.html
http://rhn.redhat.com/errata/RHSA-2017-1415.html
https://access.redhat.com/errata/RHSA-2017:1161
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-2161.json
https://api.first.org/data/v1/epss?cve=CVE-2016-2161
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0736
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2161
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8743
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03725en_us
https://httpd.apache.org/security/vulnerabilities_24.html
https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2016-2161
https://lists.apache.org/thread.html/139862b41c0dfd5e6e00ad89c00119f9faf0dd41a2f927da9c9a4076@%3Cannounce.httpd.apache.org%3E
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/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f%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/rb14daf9cc4e28d18cdc15d6a6ca74e565672fabf7ad89541071d008b@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rb14daf9cc4e28d18cdc15d6a6ca74e565672fabf7ad89541071d008b%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/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%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/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467%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/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
https://security.gentoo.org/glsa/201701-36
https://security.netapp.com/advisory/ntap-20180423-0001/
https://support.apple.com/HT208221
https://ubuntu.com/security/notices/USN-3279-1
https://www.tenable.com/security/tns-2017-04
http://www.debian.org/security/2017/dsa-3796
http://www.securityfocus.com/bid/95076
http://www.securitytracker.com/id/1037508
1406753 https://bugzilla.redhat.com/show_bug.cgi?id=1406753
cpe:2.3:a:apache:http_server:2.4.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.0:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.1:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.10:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.12:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.12:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.14:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.14:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.16:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.16:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.19:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.19:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.2:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.20:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.20:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.21:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.21:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.22:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.22:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.23:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.23:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.3:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.3:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.6:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.7:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.7:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.8:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.8:*:*:*:*:*:*:*
cpe:2.3:a:apache:http_server:2.4.9:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:2.4.9:*:*:*:*:*:*:*
CVE-2016-2161 https://httpd.apache.org/security/json/CVE-2016-2161.json
CVE-2016-2161 https://nvd.nist.gov/vuln/detail/CVE-2016-2161
RHSA-2017:0906 https://access.redhat.com/errata/RHSA-2017:0906
RHSA-2017:1413 https://access.redhat.com/errata/RHSA-2017:1413
RHSA-2017:1414 https://access.redhat.com/errata/RHSA-2017:1414
RHSA-2017:1415 https://access.redhat.com/errata/RHSA-2017:1415
USN-3279-1 https://usn.ubuntu.com/3279-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-2161.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: AV:N/AC:M/Au:N/C:N/I:N/A:P Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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:3.1/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-2016-2161
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-2016-2161
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 0.90460
EPSS Score 0.02809
Published At Jan. 16, 2025, midnight
Date Actor Action Source VulnerableCode Version
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