CVE-2018-18820

Name: CVE-2018-18820
Creator: NVD / NIST
Published: 2018-11-05T19:29:00.283+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 48.94%

Last modified Jun 17, 2026

CVE-2018-18820 is a vulnerability of currently unknown severity. A buffer overflow was discovered in the URL-authentication backend of the Icecast before 2.4.4. If the backend is enabled, then any malicious HTTP client can send a request for that specific resource including a crafted header, leading to denial of service and potentially remote code execution.. EPSS estimates a 48.94% chance of exploitation in the next 30 days.

Description

A buffer overflow was discovered in the URL-authentication backend of the Icecast before 2.4.4. If the backend is enabled, then any malicious HTTP client can send a request for that specific resource including a crafted header, leading to denial of service and potentially remote code execution.

Metrics

EPSS Probability

48.94%

98.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Xiph	Icecast	< 2.4.4
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

http://www.openwall.com/lists/oss-security/2018/11/01/3Mailing List, Patch, Third Party Advisory
http://www.securitytracker.com/id/1042019Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2018/11/msg00033.htmlThird Party Advisory
https://security.gentoo.org/glsa/201811-09Mitigation, Third Party Advisory
https://www.debian.org/security/2018/dsa-4333Third Party Advisory
http://www.openwall.com/lists/oss-security/2018/11/01/3Mailing List, Patch, Third Party Advisory
http://www.securitytracker.com/id/1042019Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2018/11/msg00033.htmlThird Party Advisory
https://security.gentoo.org/glsa/201811-09Mitigation, Third Party Advisory
https://www.debian.org/security/2018/dsa-4333Third Party Advisory

Timeline

Published: Nov 5, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-18820?

How severe is CVE-2018-18820?

Severity scoring for CVE-2018-18820 is pending analysis. The EPSS model estimates a 48.94% probability of exploitation in the next 30 days.

How do I fix CVE-2018-18820?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-18820?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST