CVE-2021-43300: Buffer Overflow
First published: Wed Feb 16 2022(Updated: )
Stack overflow in PJSUA API when calling pjsua_recorder_create. An attacker-controlled 'filename' argument may cause a buffer overflow since it is copied to a fixed-size stack buffer without any size validation.
Credit: reefs@jfrog.com reefs@jfrog.com reefs@jfrog.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Teluu PJSIP | <=2.11.1 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
| ubuntu/ring | <20180228.1.503 | 20180228.1.503 |
| ubuntu/ring | <20190215.1. | 20190215.1. |
| debian/asterisk | 1:16.28.0~dfsg-0+deb10u4 1:16.28.0~dfsg-0+deb11u3 1:16.28.0~dfsg-0+deb11u4 1:20.6.0~dfsg+~cs6.13.40431414-2 | |
| debian/ring | <=20190215.1.f152c98~ds1-1+deb10u1<=20210112.2.b757bac~ds1-1 | 20190215.1.f152c98~ds1-1+deb10u2 20230206.0~ds2-1.1 20231201.0~ds1-1 |
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Reference Links
- https://github.com/pjsip/pjproject/security/advisories/GHSA-qcvw-h34v-c7r9
- https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html
- https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html
- https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
- https://www.debian.org/security/2022/dsa-5285
- https://launchpad.net/bugs/cve/CVE-2021-43300
- https://github.com/pjsip/pjproject/commit/d979253c924a686fa511d705be1f3ad0c5b20337
- https://security-tracker.debian.org/tracker/CVE-2021-43300
- https://ubuntu.com/security/notices/USN-6422-1
- https://www.cve.org/CVERecord?id=CVE-2021-43300
- https://nvd.nist.gov/vuln/detail/CVE-2021-43300
- https://ubuntu.com/security/CVE-2021-43300
Frequently Asked Questions
What is CVE-2021-43300?
CVE-2021-43300 is a vulnerability in the PJSUA API that allows a stack overflow when calling pjsua_recorder_create, potentially leading to a buffer overflow.
Which software is affected by CVE-2021-43300?
Teluu Pjsip version up to and including 2.11.1, Debian Linux versions 9.0, 10.0, and 11.0, and the Ring package versions 20180228.1.503 and 20190215.1.
What is the severity of CVE-2021-43300?
The severity of CVE-2021-43300 is critical with a CVSS score of 9.8.
How can I fix CVE-2021-43300 for Teluu Pjsip?
Update Teluu Pjsip to version 2.11.2 or newer to fix CVE-2021-43300.
How can I fix CVE-2021-43300 for Debian Linux?
Update your Debian Linux distribution to the latest LTS version and apply the necessary security updates to fix CVE-2021-43300.
How can I fix CVE-2021-43300 for the Ring package?
Update the Ring package to the latest version available that includes the fix for CVE-2021-43300.
- collector/nvd-api
- collector/nvd-index
- agent/type
- agent/first-publish-date
- agent/last-modified-date
- collector/launchpad-cve
- source/Launchpad
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/remedy
- agent/severity
- agent/weakness
- agent/author
- agent/description
- agent/event
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- agent/references
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/teluu
- canonical/teluu pjsip
- version/teluu pjsip/2.11.1
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/9.0
- version/debian debian linux/10.0
- version/debian debian linux/11.0
- package-manager/debian
- package-manager/ubuntu