CVE-2019-18976
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
An issue was discovered in res_pjsip_t38.c in Sangoma Asterisk through 13.x and Certified Asterisk through 13.21-x. If it receives a re-invite initiating T.38 faxing and has a port of 0 and no c line in the SDP, a NULL pointer dereference and crash will occur. This is different from CVE-2019-18940.
Overview
- CVE ID
- CVE-2019-18976
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2019-11-22T17:15:11
- Last Modified Date
- 2022-06-03T14:41:01
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* | 1 | OR | 13.0.0 | 13.29.1 |
| cpe:2.3:a:digium:certified_asterisk:13.21:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:digium:certified_asterisk:13.21:cert1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:digium:certified_asterisk:13.21:cert2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:digium:certified_asterisk:13.21:cert3:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:digium:certified_asterisk:13.21:cert4:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://www.cybersecurity-help.cz/vdb/SB2019112218?affChecked=1 | Third Party Advisory |
| https://www.asterisk.org/downloads/security-advisories | Vendor Advisory |
| http://downloads.asterisk.org/pub/security/AST-2019-008.html | Vendor Advisory |
| https://packetstormsecurity.com/files/155436/Asterisk-Project-Security-Advisory-AST-2019-008.html | Third Party Advisory VDB Entry |
| https://seclists.org/fulldisclosure/2019/Nov/20 | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-18976 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18976 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-04-04 00:38:44 | Added to TrackCVE | |||
| 2022-12-04 06:47:42 | 2019-11-22T17:15Z | 2019-11-22T17:15:11 | CVE Published Date | updated |
| 2022-12-04 06:47:42 | 2022-06-03T14:41:01 | CVE Modified Date | updated | |
| 2022-12-04 06:47:42 | Analyzed | Vulnerability Status | updated |