# CVE-2024-3120: sngrep: A stack-buffer overflow vulnerability exists in all versions of sngrep since v1.4.1

CVE-2024-3120 is fixed in sngrep on 1 platform, first by DEBIAN-CVE-2024-3120, released April 10, 2024. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2024-3120
- Priority: Urgent
- CVSS: 9.8 (critical)
- EPSS: 0.0184
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 10, 2024

## Description

A stack-buffer overflow vulnerability exists in all versions of sngrep since v1.4.1. The flaw is due to inadequate bounds checking when copying 'Content-Length' and 'Warning' headers into fixed-size buffers in the sip_validate_packet and sip_parse_extra_headers functions within src/sip.c. This vulnerability allows remote attackers to execute arbitrary code or cause a denial of service (DoS) via crafted SIP messages.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | sngrep Debian 13.5 (trixie) | 1.8.1-1 | [DEBIAN-CVE-2024-3120](https://patchblox.com/security/data/fix/linux/debian-cve-2024-3120.md) | Apr 10, 2024 |
| Linux | sngrep Debian 14 | 1.8.1-1 | [DEBIAN-CVE-2024-3120](https://patchblox.com/security/data/fix/linux/debian-cve-2024-3120.md) | Apr 10, 2024 |

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Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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