CVE-2019-18976

Source
https://cve.org/CVERecord?id=CVE-2019-18976
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-18976.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2019-18976
Downstream
Published
2019-11-22T17:15:11.833Z
Modified
2026-05-28T04:05:07.206321758Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

An issue was discovered in respjsipt38.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.

Database specific
{
    "unresolved_ranges": [
        {
            "vendor_product": "debian:debian_linux",
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
                {
                    "last_affected": "9.0"
                }
            ],
            "source": "CPE_STRING"
        }
    ]
}
References

Affected packages

Git / github.com/asterisk/asterisk

Affected ranges

Type
GIT
Repo
https://github.com/asterisk/asterisk
Events
Database specific
{
    "extracted_events": [
        {
            "introduced": "13.0.0"
        },
        {
            "last_affected": "13.29.1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "13.21"
        },
        {
            "last_affected": "13.21-cert1"
        },
        {
            "last_affected": "13.21-cert2"
        },
        {
            "last_affected": "13.21-cert3"
        },
        {
            "last_affected": "13.21-cert4"
        }
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING"
    ],
    "cpe": [
        "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:digium:certified_asterisk:13.21:*:*:*:*:*:*:*",
        "cpe:2.3:a:digium:certified_asterisk:13.21:cert1:*:*:*:*:*:*",
        "cpe:2.3:a:digium:certified_asterisk:13.21:cert2:*:*:*:*:*:*",
        "cpe:2.3:a:digium:certified_asterisk:13.21:cert3:*:*:*:*:*:*",
        "cpe:2.3:a:digium:certified_asterisk:13.21:cert4:*:*:*:*:*:*"
    ]
}

Affected versions

13.*
13.21.0
13.21.0-rc1
13.29.0
13.29.0-rc1
13.29.0-rc2
13.29.1
certified/13.*
certified/13.21-cert1
certified/13.21-cert2
certified/13.21-cert3
certified/13.21-cert4

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-18976.json"