CVE-2019-18976

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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
2026-03-20T11:28:47.248922Z
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.

References

Affected packages

Git / github.com/asterisk/asterisk

Affected ranges

Type
GIT
Repo
https://github.com/asterisk/asterisk
Events
Introduced
85335355efb2d7914a1fe20ed31afcef15fd210c
Last affected
fb53d3a79072ed172de6a0b88b801fdf9131d079
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
f71a36701674cf50c47d91c403e824b9cc4868a7
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
d661052e6d2eddae58bec5a04229c105d11e18f4
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
742007f881f8cb04fe543fba4dbe5404589d9f14
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
ab699aa653ffbf9efe11fef940dd2cb0a80b075e
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
bb3e299589a06b7cf5bdd06a117332eaf3cf0f4d
Database specific 
{
    "versions": [
        {
            "introduced": "13.0.0"
        },
        {
            "last_affected": "13.29.1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "13.21"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "13.21-cert1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "13.21-cert2"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "13.21-cert3"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "13.21-cert4"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-18976.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0"
            }
        ]
    }
]