CVE-2018-18820
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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 48.94% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 98.8% of scored records. A rank, not a probability.
- NVD base score
- 8.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-11-05 19:00Z7 YR AGO
- Last updated
- 2024-08-05 11:23Z2 YR AGO
- Reserved
- 2018-10-29
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
- Data version
- 5.1
- Document digest
- f331d97d3af861b99470ec74b7b7ddec5a09583b9a747efad27c77c4016a6ba2
05 Affected products
06 References
- www.securitytracker.com1042019http://www.securitytracker.com/id/1042019
- security.gentoo.orgGLSA-201811-09https://security.gentoo.org/glsa/201811-09
- lists.debian.org[debian-lts-announce] 20181126 [SECURITY] [DLA-1588-1] icecast2 security updatehttps://lists.debian.org/debian-lts-announce/2018/11/msg00033.html
- www.openwall.com[oss-security] 20181101 Icecast 2.4.4 - CVE-2018-18820 - buffer overflow in url-authhttp://www.openwall.com/lists/oss-security/2018/11/01/3
- www.debian.orgDSA-4333https://www.debian.org/security/2018/dsa-4333
07 Fixed in
Debian 12
- icecast2 Fixed in 2.4.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- icecast2 Fixed in 2.4.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- icecast2 Fixed in 2.4.2-1ubuntu0.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- icecast2 Fixed in 2.4.3-2ubuntu0.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.