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Vulnerability details: VCID-epvz-3a4j-aaab
Vulnerability ID VCID-epvz-3a4j-aaab
Aliases CVE-2018-7284
Summary A Buffer Overflow issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2. When processing a SUBSCRIBE request, the res_pjsip_pubsub module stores the accepted formats present in the Accept headers of the request. This code did not limit the number of headers it processed, despite having a fixed limit of 32. If more than 32 Accept headers were present, the code would write outside of its memory and cause a crash.
Status Published
Exploitability 2.0
Weighted Severity 6.8
Risk 10.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
System Score Found at
generic_textual Medium http://downloads.asterisk.org/pub/security/AST-2018-004.html
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-7284.html
epss 0.62436 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
epss 0.62436 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
epss 0.62436 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
epss 0.62436 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
epss 0.6684 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
epss 0.6684 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
epss 0.6684 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
epss 0.6684 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
epss 0.6684 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
epss 0.6684 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
epss 0.6684 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
epss 0.6684 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
epss 0.6684 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
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epss 0.6684 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
epss 0.73189 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
epss 0.73189 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
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epss 0.73189 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
epss 0.73189 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
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epss 0.78677 https://api.first.org/data/v1/epss?cve=CVE-2018-7284
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12227
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17281
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7284
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7286
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2018-7284
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-7284
Reference id Reference type URL
http://downloads.asterisk.org/pub/security/AST-2018-004.html
http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-7284.html
https://api.first.org/data/v1/epss?cve=CVE-2018-7284
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12227
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17281
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7284
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7286
https://www.debian.org/security/2018/dsa-4320
https://www.exploit-db.com/exploits/44184/
http://www.securityfocus.com/bid/103151
http://www.securitytracker.com/id/1040416
891227 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=891227
cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:digium:certified_asterisk:*:*:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.18:cert1:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:digium:certified_asterisk:13.18:cert1:*:*:*:*:*:*
cpe:2.3:a:digium:certified_asterisk:13.18:cert2:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:digium:certified_asterisk:13.18:cert2:*:*:*:*:*:*
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:*:*:*:*:*:*:*
CVE-2018-7284 Exploit https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/dos/44184.py
CVE-2018-7284 https://nvd.nist.gov/vuln/detail/CVE-2018-7284
CVE-2018-7284 Exploit https://raw.githubusercontent.com/EnableSecurity/advisories/master/ES2018-01-asterisk-pjsip-subscribe-stack-corruption/README.md
Data source Exploit-DB
Date added Feb. 27, 2018
Description Asterisk chan_pjsip 15.2.0 - 'SUBSCRIBE' Stack Corruption
Ransomware campaign use Known
Source publication date Feb. 27, 2018
Exploit type dos
Platform linux
Source update date Feb. 27, 2018
Source URL https://raw.githubusercontent.com/EnableSecurity/advisories/master/ES2018-01-asterisk-pjsip-subscribe-stack-corruption/README.md
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-7284
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-2018-7284
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 0.97977
EPSS Score 0.62436
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.