UBUNTU-CVE-2026-40892

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Source
https://ubuntu.com/security/CVE-2026-40892
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40892.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-40892
Upstream
  • CVE-2026-40892
Published
2026-04-21T21:16:00Z
Modified
2026-05-20T16:25:42.268330181Z
Severity
  • 8.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U CVSS Calculator
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, a stack buffer overflow exists in pjsipauthcreatedigest2() in PJSIP when using pre-computed digest credentials (PJSIPCREDDATADIGEST). The function copies credential data using cred_info->data.slen as the length without an upper-bound check, which can overflow the fixed-size ha1 stack buffer (128 bytes) if data.slen exceeds the expected digest string length.

References

Affected packages

Ubuntu:18.04:LTS
asterisk

Package

Name
asterisk
Purl
pkg:deb/ubuntu/asterisk?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_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-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",
            "binary_version": "1:13.18.3~dfsg-1ubuntu4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40892.json"
Ubuntu:20.04:LTS
asterisk

Package

Name
asterisk
Purl
pkg:deb/ubuntu/asterisk?arch=source&distro=focal

Affected ranges

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

Affected versions

1:16.*
1:16.2.1~dfsg-2build2
1:16.2.1~dfsg-2build3
1:16.2.1~dfsg-2ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "asterisk",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
        },
        {
            "binary_name": "asterisk-config",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
        },
        {
            "binary_name": "asterisk-dahdi",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
        },
        {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
        },
        {
            "binary_name": "asterisk-modules",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
        },
        {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
        },
        {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
        },
        {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
        },
        {
            "binary_name": "asterisk-tests",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
        },
        {
            "binary_name": "asterisk-voicemail",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
        },
        {
            "binary_name": "asterisk-voicemail-imapstorage",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
        },
        {
            "binary_name": "asterisk-voicemail-odbcstorage",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
        },
        {
            "binary_name": "asterisk-vpb",
            "binary_version": "1:16.2.1~dfsg-2ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40892.json"
Ubuntu:22.04:LTS
asterisk

Package

Name
asterisk
Purl
pkg:deb/ubuntu/asterisk?arch=source&distro=jammy

Affected ranges

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

Affected versions

1:16.*
1:16.16.1~dfsg-2
1:16.16.1~dfsg-4
1:16.16.1~dfsg-4build1
1:16.16.1~dfsg+~2.10-1
1:18.*
1:18.10.0~dfsg+~cs6.10.40431411-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "asterisk",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
        },
        {
            "binary_name": "asterisk-config",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
        },
        {
            "binary_name": "asterisk-dahdi",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
        },
        {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
        },
        {
            "binary_name": "asterisk-modules",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
        },
        {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
        },
        {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
        },
        {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
        },
        {
            "binary_name": "asterisk-tests",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
        },
        {
            "binary_name": "asterisk-vpb",
            "binary_version": "1:18.10.0~dfsg+~cs6.10.40431411-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40892.json"
Ubuntu:24.04:LTS
asterisk

Package

Name
asterisk
Purl
pkg:deb/ubuntu/asterisk?arch=source&distro=noble

Affected ranges

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

Affected versions

1:20.*
1:20.4.0~dfsg+~cs6.13.40431414-2
1:20.5.0~dfsg+~cs6.13.40431414-1
1:20.5.1~dfsg+~cs6.13.40431414-1
1:20.5.2~dfsg+~cs6.13.40431414-1
1:20.6.0~dfsg+~cs6.13.40431414-1
1:20.6.0~dfsg+~cs6.13.40431414-2
1:20.6.0~dfsg+~cs6.13.40431414-2build3
1:20.6.0~dfsg+~cs6.13.40431414-2build4
1:20.6.0~dfsg+~cs6.13.40431414-2build5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "asterisk",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
        },
        {
            "binary_name": "asterisk-config",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
        },
        {
            "binary_name": "asterisk-dahdi",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
        },
        {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
        },
        {
            "binary_name": "asterisk-modules",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
        },
        {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
        },
        {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
        },
        {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
        },
        {
            "binary_name": "asterisk-tests",
            "binary_version": "1:20.6.0~dfsg+~cs6.13.40431414-2build5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40892.json"
Ubuntu:25.10
asterisk

Package

Name
asterisk
Purl
pkg:deb/ubuntu/asterisk?arch=source&distro=questing

Affected ranges

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

Affected versions

1:22.*
1:22.2.0~dfsg+~cs6.15.60671435-2
1:22.3.0~dfsg+~cs6.15.60671435-1
1:22.4.1~dfsg+~cs6.15.60671435-1
1:22.4.1~dfsg+~cs6.15.60671435-2
1:22.5.1~dfsg+~cs6.15.60671435-1
1:22.5.2~dfsg+~cs6.15.60671435-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "asterisk",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        },
        {
            "binary_name": "asterisk-config",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        },
        {
            "binary_name": "asterisk-dahdi",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        },
        {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        },
        {
            "binary_name": "asterisk-modules",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        },
        {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        },
        {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        },
        {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        },
        {
            "binary_name": "asterisk-tests",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40892.json"
Ubuntu:26.04:LTS
asterisk

Package

Name
asterisk
Purl
pkg:deb/ubuntu/asterisk?arch=source&distro=resolute

Affected ranges

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

Affected versions

1:22.*
1:22.5.2~dfsg+~cs6.15.60671435-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "asterisk",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        },
        {
            "binary_name": "asterisk-config",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        },
        {
            "binary_name": "asterisk-dahdi",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        },
        {
            "binary_name": "asterisk-mobile",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        },
        {
            "binary_name": "asterisk-modules",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        },
        {
            "binary_name": "asterisk-mp3",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        },
        {
            "binary_name": "asterisk-mysql",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        },
        {
            "binary_name": "asterisk-ooh323",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        },
        {
            "binary_name": "asterisk-tests",
            "binary_version": "1:22.5.2~dfsg+~cs6.15.60671435-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40892.json"
Ubuntu:Pro:16.04:LTS
asterisk

Package

Name
asterisk
Purl
pkg:deb/ubuntu/asterisk?arch=source&distro=esm-apps%2Fxenial

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_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-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",
            "binary_version": "1:13.1.0~dfsg-1.1ubuntu4.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40892.json"
pjproject

Package

Name
pjproject
Purl
pkg:deb/ubuntu/pjproject?arch=source&distro=esm-apps%2Fxenial

Affected ranges

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

Affected versions

2.*
2.1.0.0.ast20130823-1
2.1.0.0.ast20130823-1+deb8u1build0.16.04.1
2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpj2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjlib-util2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjmedia-audiodev2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjmedia-codec2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjmedia-videodev2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjmedia2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjnath2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjsip-simple2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjsip-ua2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjsip2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjsua2",
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40892.json"
Ubuntu:Pro:18.04:LTS
pjproject

Package

Name
pjproject
Purl
pkg:deb/ubuntu/pjproject?arch=source&distro=esm-apps%2Fbionic

Affected ranges

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

Affected versions

2.*
2.6~dfsg-2
2.7~dfsg-1
2.7.1~dfsg-1
2.7.1~dfsg-1build1
2.7.2~dfsg-1
2.7.2~dfsg-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpj2",
            "binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjlib-util2",
            "binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjmedia-audiodev2",
            "binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjmedia-codec2",
            "binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjmedia-videodev2",
            "binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjmedia2",
            "binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjnath2",
            "binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjsip-simple2",
            "binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjsip-ua2",
            "binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjsip2",
            "binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjsua2",
            "binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libpjsua2-2v5",
            "binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "python-pjproject",
            "binary_version": "2.7.2~dfsg-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40892.json"