UBUNTU-CVE-2021-37706

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Source
https://ubuntu.com/security/CVE-2021-37706
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-37706.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-37706
Upstream
Downstream
Related
Published
2021-12-22T18:15:00Z
Modified
2025-09-08T16:47:16Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L 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 language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In affected versions if the incoming STUN message contains an ERROR-CODE attribute, the header length is not checked before performing a subtraction operation, potentially resulting in an integer underflow scenario. This issue affects all users that use STUN. A malicious actor located within the victim’s network may forge and send a specially crafted UDP (STUN) message that could remotely execute arbitrary code on the victim’s machine. Users are advised to upgrade as soon as possible. There are no known workarounds.

References

Affected packages

Ubuntu:Pro:16.04:LTS / pjproject

Package

Name
pjproject
Purl
pkg:deb/ubuntu/pjproject@2.1.0.0.ast20130823-1+deb8u1build0.16.04.1?arch=source&distro=esm-apps/xenial

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1",
            "binary_name": "libpj2"
        },
        {
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1",
            "binary_name": "libpjlib-util2"
        },
        {
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1",
            "binary_name": "libpjmedia-audiodev2"
        },
        {
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1",
            "binary_name": "libpjmedia-codec2"
        },
        {
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1",
            "binary_name": "libpjmedia-videodev2"
        },
        {
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1",
            "binary_name": "libpjmedia2"
        },
        {
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1",
            "binary_name": "libpjnath2"
        },
        {
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1",
            "binary_name": "libpjproject-dev"
        },
        {
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1",
            "binary_name": "libpjsip-simple2"
        },
        {
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1",
            "binary_name": "libpjsip-ua2"
        },
        {
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1",
            "binary_name": "libpjsip2"
        },
        {
            "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1",
            "binary_name": "libpjsua2"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / pjproject

Package

Name
pjproject
Purl
pkg:deb/ubuntu/pjproject@2.7.2~dfsg-1?arch=source&distro=esm-apps/bionic

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

Ecosystem specific 

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

Ubuntu:Pro:18.04:LTS / ring

Package

Name
ring
Purl
pkg:deb/ubuntu/ring@20180228.1.503da2b~ds1-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
20180228.1.503da2b~ds1-1ubuntu0.1~esm1

Affected versions

20170803.*

20170803.2.5fcfe3f~dfsg1-1

20171024.*

20171024.1.eadbdeb~ds1-1

20171129.*

20171129.2.cf5bbff~ds1-1
20171129.2.cf5bbff~ds1-2

20180119.*

20180119.1.9e06f94~ds1-1
20180119.1.9e06f94~ds1-3

20180222.*

20180222.1.7bffde2~ds2-2

20180228.*

20180228.1.503da2b~ds1-1
20180228.1.503da2b~ds1-1build1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "20180228.1.503da2b~ds1-1ubuntu0.1~esm1",
            "binary_name": "ring"
        },
        {
            "binary_version": "20180228.1.503da2b~ds1-1ubuntu0.1~esm1",
            "binary_name": "ring-daemon"
        }
    ]
}

Ubuntu:20.04:LTS / ring

Package

Name
ring
Purl
pkg:deb/ubuntu/ring@20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1

Affected versions

20190215.*

20190215.1.f152c98~ds1-1
20190215.1.f152c98~ds1-1build1
20190215.1.f152c98~ds1-1build2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1",
            "binary_name": "jami"
        },
        {
            "binary_version": "20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1",
            "binary_name": "jami-daemon"
        },
        {
            "binary_version": "20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1",
            "binary_name": "ring"
        },
        {
            "binary_version": "20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1",
            "binary_name": "ring-daemon"
        }
    ]
}