NULL pointer dereference in Icecast

1) NULL pointer dereference

EUVDB-ID: #VU32422

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2015-3026

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via a request without login credentials, as demonstrated by a request to "admin/killsource?mount=/test.ogg." <a href="http://cwe.mitre.org/data/definitions/476.html">CWE-476: NULL Pointer Dereference</a>

Mitigation

Update to version 2.4.2.

Vulnerable software versions

Icecast: 2.4.0 - 2.4.1

CPE2.3

• cpe:2.3:a:icecast_org:icecast:2.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:icecast_org:icecast:2.4.1:*:*:*:*:*:*:*

External links

https://lists.fedoraproject.org/pipermail/package-announce/2015-August/163859.html
https://lists.fedoraproject.org/pipermail/package-announce/2015-August/164061.html
https://lists.fedoraproject.org/pipermail/package-announce/2015-August/164074.html
https://lists.opensuse.org/opensuse-updates/2015-04/msg00030.html
https://lists.xiph.org/pipermail/icecast-dev/2015-April/002460.html
https://www.debian.org/security/2015/dsa-3239
https://www.openwall.com/lists/oss-security/2015/04/08/11
https://www.openwall.com/lists/oss-security/2015/04/08/8
https://www.securityfocus.com/bid/73965
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=782120
https://security.gentoo.org/glsa/201508-03
https://trac.xiph.org/changeset/27abfbbd688df3e3077b535997330aa06603250f/icecast-server
https://trac.xiph.org/ticket/2191

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.