CVE-2022-39244 Buffer overflow in pjlib scanner and pjmedia
Buffer overflow in PJSIP parser and media components allows attackers to execute code or cause denial of service via untrusted clients.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2022-39244?
CVE-2022-39244 is a high-severity memory corruption vulnerability in pjsip pjproject, published on 6 Oct 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
PJSIP is a free and open source multimedia communication library written in C. In versions of PJSIP prior to 2.13 the PJSIP parser, PJMEDIA RTP decoder, and PJMEDIA SDP parser are affeced by a buffer overflow vulnerability. Users connecting to untrusted clients are at risk. This issue has been patched and is available as commit c4d3498 in the master branch and will be included in releases 2.13 and later. Users are advised to upgrade. There are no known workarounds for this issue.
Weakness: CWE-120
Which versions are affected by CVE-2022-39244?
It affects 1 product.
Products include Pjsip Pjsip.
How do I fix CVE-2022-39244?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-39244 being exploited?
There is no known exploitation of CVE-2022-39244 in the wild and no public exploit code.
Other vulnerabilities in pjsip pjproject
- CVE-2026-28799 PJSIP: Heap use-after-free in PJSIP presence subscription termination handler
- CVE-2026-29068 PJSIP: Stack buffer overflow in Opus codec parser
- CVE-2026-40614 PJSIP: Heap buffer overflow in Opus codec decoding
- CVE-2026-32945 PJSIP is vulnerable to Heap-based Buffer Overflow through DNS parser
- CVE-2026-40892 PJSIP: Stack buffer overflow in pjsip_auth_create_digest2()
Sources
Also known as ALPINE-CVE-2022-39244, DEBIAN-CVE-2022-39244, GHSA-fq45-m3f7-3mhj, UBUNTU-CVE-2022-39244.