CVE-2024-3120: sngrep Buffer Overflow — Fix

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.

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CVSS v3.1 Score

9.0

CRITICAL

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness Type (CWE)

CWE-120 CWE-120

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
irontec	sngrep	1.4.1 — 1.8.1

References

Advisories & Patches

https://github.com/irontec/sngrep/pull/480/commits/f229a5d31b0be6a6cc3ab4cd9bfa4a1b5c5714c6 https://github.com/irontec/sngrep/pull/480/commits/f229a5d31b0be6a6cc3ab4cd9bfa4a1b5c5714c6

Other References

https://github.com/irontec/sngrep/releases/tag/v1.8.1 https://pentraze.com/vulnerability-reports/ https://github.com/irontec/sngrep/releases/tag/v1.8.1 https://pentraze.com/vulnerability-reports/

Frequently Asked Questions

What is CVE-2024-3120? +

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. It has a CVSS v3.1 base score of 9.0 (CRITICAL).

How severe is CVE-2024-3120? +

CVE-2024-3120 has a CVSS v3.1 score of 9.0 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-3120? +

CVE-2024-3120 affects products from irontec, specifically: sngrep. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-3120? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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