UBUNTU-CVE-2019-18976

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2019-18976
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-18976.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2019-18976
Upstream
Published
2019-11-22T17:15:00Z
Modified
2025-10-24T04:47:58Z
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
  • Ubuntu - medium
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

Ubuntu:Pro:16.04:LTS / asterisk

Package

Name
asterisk
Purl
pkg:deb/ubuntu/asterisk@1:13.1.0~dfsg-1.1ubuntu4.1+esm1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:13.*

1:13.1.0~dfsg-1.1ubuntu3
1:13.1.0~dfsg-1.1ubuntu4
1:13.1.0~dfsg-1.1ubuntu4.1
1:13.1.0~dfsg-1.1ubuntu4.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1",
            "binary_name": "asterisk"
        },
        {
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1",
            "binary_name": "asterisk-config"
        },
        {
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1",
            "binary_name": "asterisk-dahdi"
        },
        {
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1",
            "binary_name": "asterisk-dev"
        },
        {
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1",
            "binary_name": "asterisk-mobile"
        },
        {
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1",
            "binary_name": "asterisk-modules"
        },
        {
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1",
            "binary_name": "asterisk-mp3"
        },
        {
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1",
            "binary_name": "asterisk-mysql"
        },
        {
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1",
            "binary_name": "asterisk-ooh323"
        },
        {
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1",
            "binary_name": "asterisk-voicemail"
        },
        {
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1",
            "binary_name": "asterisk-voicemail-imapstorage"
        },
        {
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1",
            "binary_name": "asterisk-voicemail-odbcstorage"
        },
        {
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1",
            "binary_name": "asterisk-vpb"
        }
    ]
}

Ubuntu:18.04:LTS / asterisk

Package

Name
asterisk
Purl
pkg:deb/ubuntu/asterisk@1:13.18.3~dfsg-1ubuntu4?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:13.*

1:13.17.2~dfsg-1ubuntu1
1:13.17.2~dfsg-2ubuntu1
1:13.18.1~dfsg-1ubuntu1
1:13.18.3~dfsg-1ubuntu1
1:13.18.3~dfsg-1ubuntu2
1:13.18.3~dfsg-1ubuntu3
1:13.18.3~dfsg-1ubuntu4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:13.18.3~dfsg-1ubuntu4",
            "binary_name": "asterisk"
        },
        {
            "binary_version": "1:13.18.3~dfsg-1ubuntu4",
            "binary_name": "asterisk-config"
        },
        {
            "binary_version": "1:13.18.3~dfsg-1ubuntu4",
            "binary_name": "asterisk-dahdi"
        },
        {
            "binary_version": "1:13.18.3~dfsg-1ubuntu4",
            "binary_name": "asterisk-dev"
        },
        {
            "binary_version": "1:13.18.3~dfsg-1ubuntu4",
            "binary_name": "asterisk-mobile"
        },
        {
            "binary_version": "1:13.18.3~dfsg-1ubuntu4",
            "binary_name": "asterisk-modules"
        },
        {
            "binary_version": "1:13.18.3~dfsg-1ubuntu4",
            "binary_name": "asterisk-mp3"
        },
        {
            "binary_version": "1:13.18.3~dfsg-1ubuntu4",
            "binary_name": "asterisk-mysql"
        },
        {
            "binary_version": "1:13.18.3~dfsg-1ubuntu4",
            "binary_name": "asterisk-ooh323"
        },
        {
            "binary_version": "1:13.18.3~dfsg-1ubuntu4",
            "binary_name": "asterisk-tests"
        },
        {
            "binary_version": "1:13.18.3~dfsg-1ubuntu4",
            "binary_name": "asterisk-voicemail"
        },
        {
            "binary_version": "1:13.18.3~dfsg-1ubuntu4",
            "binary_name": "asterisk-voicemail-imapstorage"
        },
        {
            "binary_version": "1:13.18.3~dfsg-1ubuntu4",
            "binary_name": "asterisk-voicemail-odbcstorage"
        },
        {
            "binary_version": "1:13.18.3~dfsg-1ubuntu4",
            "binary_name": "asterisk-vpb"
        }
    ]
}