UBUNTU-CVE-2021-32686

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Source
https://ubuntu.com/security/CVE-2021-32686
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-32686.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-32686
Upstream
Published
2021-07-23T22:15:00Z
Modified
2025-09-08T16:47:10Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - low
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 PJSIP before version 2.11.1, there are a couple of issues found in the SSL socket. First, a race condition between callback and destroy, due to the accepted socket having no group lock. Second, the SSL socket parent/listener may get destroyed during handshake. Both issues were reported to happen intermittently in heavy load TLS connections. They cause a crash, resulting in a denial of service. These are fixed in version 2.11.1.

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"
        }
    ]
}