CVE-2022-42705

A use-after-free in res_pjsip_pubsub.c in Sangoma Asterisk 16.28, 18.14, 19.6, and certified/18.9-cert2 may allow a remote authenticated attacker to crash Asterisk (denial of service) by performing activity on a subscription via a reliable transport at the same time that Asterisk is also performing activity on that subscription.

CVSS v3.0 6.5 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://downloads.asterisk.org/pub/security/AST-2022-008.html	Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html
https://www.debian.org/security/2023/dsa-5358

Advertisement

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:sangoma:certified_asterisk:18.9:cert2::::::
	cpe:2.3:a:sangoma:asterisk::::::::
	cpe:2.3:a:sangoma:asterisk::::::::
	cpe:2.3:a:sangoma:asterisk::::::::
	cpe:2.3:a:sangoma:asterisk:20.0.0:::::::*

Information

Published : 2022-12-05 13:15

Updated : 2023-02-23 16:15

NVD link : CVE-2022-42705

Mitre link : CVE-2022-42705

JSON object : View

CWE

CWE-416

Use After Free

Advertisement

Products Affected

sangoma

certified_asterisk
asterisk

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://downloads.asterisk.org/pub/security/AST-2022-008.html", "name": "https://downloads.asterisk.org/pub/security/AST-2022-008.html", "tags": ["Patch", "Vendor Advisory"], "refsource": "MISC"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html", "name": "[debian-lts-announce] 20230222 [SECURITY] [DLA 3335-1] asterisk security update", "tags": [], "refsource": "MLIST"}, {"url": "https://www.debian.org/security/2023/dsa-5358", "name": "DSA-5358", "tags": [], "refsource": "DEBIAN"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "A use-after-free in res_pjsip_pubsub.c in Sangoma Asterisk 16.28, 18.14, 19.6, and certified/18.9-cert2 may allow a remote authenticated attacker to crash Asterisk (denial of service) by performing activity on a subscription via a reliable transport at the same time that Asterisk is also performing activity on that subscription."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-416"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2022-42705", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}}, "publishedDate": "2022-12-05T21:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:sangoma:certified_asterisk:18.9:cert2:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "19.7.1", "versionStartIncluding": "19.6.0"}, {"cpe23Uri": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "18.15.1", "versionStartIncluding": "18.14.0"}, {"cpe23Uri": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "16.29.1", "versionStartIncluding": "16.0.0"}, {"cpe23Uri": "cpe:2.3:a:sangoma:asterisk:20.0.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2023-02-24T00:15Z"}