# CVE-2022-24764: Stack buffer overflow in pjproject

> A stack buffer overflow in PJSIP allows attackers to execute arbitrary code or cause denial of service via specific SDP printing APIs.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 22 Mar 2022
- **Updated:** 4 Nov 2025
- **Also known as:** ALPINE-CVE-2022-24764, DEBIAN-CVE-2022-24764, GHSA-f5qg-pqcg-765m, UBUNTU-CVE-2022-24764

## What is CVE-2022-24764?

CVE-2022-24764 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 22 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

PJSIP is a free and open source multimedia communication library written in C. Versions 2.12 and prior contain a stack buffer overflow vulnerability that affects PJSUA2 users or users that call the API `pjmedia_sdp_print(), pjmedia_sdp_media_print()`. Applications that do not use PJSUA2 and do not directly call `pjmedia_sdp_print()` or `pjmedia_sdp_media_print()` should not be affected. A patch is available on the `master` branch of the `pjsip/pjproject` GitHub repository. There are currently no known workarounds.

Weakness: CWE-787 (Out-of-bounds Write), CWE-121 (Stack-based Buffer Overflow), CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2022-24764?

It affects 2 products.


Products: Debian Debian Linux, Teluu Pjsip.

## How do I fix CVE-2022-24764?

Apply the vendor's patch.

## Is CVE-2022-24764 being exploited?

There is no known exploitation of CVE-2022-24764 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-24764 and fix it if it is affected.

What it is: CVE-2022-24764 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 22 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-24764 in the wild and no public exploit code.

Affected product: Debian Debian Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-24764/ (Markdown: https://insights.sbomify.com/CVE-2022-24764/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-24764
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-24764
- OSV: https://osv.dev/vulnerability/CVE-2022-24764

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-24764/
Summaries are generated and may contain mistakes; the official description above is the record.