UBUNTU-CVE-2026-57163

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Source
https://ubuntu.com/security/CVE-2026-57163
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-57163.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-57163
Upstream
Published
2026-09-04T18:17:00Z
Modified
2026-09-16T14:01:39Z
Severity
  • 8.8 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

PJSIP is a free and open source multimedia communication library written in C. Prior to commit c4a151a, a stack buffer overflow exists in the GnuTLS TLS backend when parsing the Subject Alternative Name extension of a peer certificate (tls_cert_get_info() in ssl_sock_gtls.c). Only GnuTLS builds are affected (--with-gnutls); OpenSSL and Apple SecureTransport/Network.framework builds are not affected. While extracting certificate information after a TLS handshake, an incorrect buffer-size value can cause an oversized SubjectAltName entry to be written past the end of a fixed-size stack buffer. A network-positioned attacker presenting a crafted certificate — a malicious server to a connecting client, or a malicious client to a server that requests certificates — can trigger this during the TLS handshake, before any SIP-level authentication. Impact may range from unexpected application termination to control flow hijack/memory corruption. This issue has been patched via commit c4a151a.

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
0 Unknown 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-2026-57163.json"
Ubuntu:20.04:LTS
asterisk

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown 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-2026-57163.json"
Ubuntu:22.04:LTS
asterisk

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown 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-2026-57163.json"
Ubuntu:24.04:LTS
asterisk

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown 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-2026-57163.json"
Ubuntu:26.04:LTS
asterisk

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown 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-2026-57163.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
0 Unknown 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-2026-57163.json"
pjproject

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown 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-2026-57163.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
0 Unknown 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-2026-57163.json"