CVE-2021-43299: Buffer Overflow
First published: Wed Feb 16 2022(Updated: )
Stack overflow in PJSUA API when calling pjsua_player_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-2021-43299
- https://github.com/pjsip/pjproject/commit/d979253c924a686fa511d705be1f3ad0c5b20337
- https://security-tracker.debian.org/tracker/CVE-2021-43299
- https://ubuntu.com/security/notices/USN-6422-1
- https://www.cve.org/CVERecord?id=CVE-2021-43299
- https://nvd.nist.gov/vuln/detail/CVE-2021-43299
- https://ubuntu.com/security/CVE-2021-43299
Frequently Asked Questions
What is CVE-2021-43299?
CVE-2021-43299 is a vulnerability that allows a stack overflow in PJSUA API when calling pjsua_player_create.
What is the severity of CVE-2021-43299?
CVE-2021-43299 has a severity rating of 9.8 (Critical).
Which software is affected by CVE-2021-43299?
CVE-2021-43299 affects Teluu Pjsip versions up to and including 2.11.1, as well as Debian Linux versions 9.0, 10.0, and 11.0.
How does CVE-2021-43299 occur?
CVE-2021-43299 occurs when an attacker-controlled 'filename' argument is passed to pjsua_player_create, causing a buffer overflow.
How can I fix CVE-2021-43299?
To fix CVE-2021-43299, update to the latest version of Teluu Pjsip or Debian Linux, depending on the affected software.
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- version/teluu pjsip/2.11.1
- vendor/debian
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- version/debian debian linux/9.0
- version/debian debian linux/10.0
- version/debian debian linux/11.0
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