Vulnerability Details : CVE-2013-4154
The qemuAgentCommand function in libvirt before 1.1.1, when a guest agent is not configured, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via vectors related to "agent based cpu (un)plug," as demonstrated by the "virsh vcpucount foobar --guest" command.
Vulnerability category: Memory CorruptionDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2013-4154
Probability of exploitation activity in the next 30 days: 1.39%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 85 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2013-4154
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST |
References for CVE-2013-4154
-
https://bugzilla.redhat.com/show_bug.cgi?id=986386
986386 – (CVE-2013-4154) CVE-2013-4154 libvirt: crash of libvirtd without guest agent configurationPatch
-
http://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=96518d4316b711c72205117f8d5c967d5127bbb6
libvirt.org Git
-
https://bugzilla.redhat.com/show_bug.cgi?id=984821
984821 – Crash of libvirtd without guest agent configurationExploit
-
http://libvirt.org/news.html
libvirt: Releases
-
http://openwall.com/lists/oss-security/2013/07/19/12
oss-security - Re: CVE request -- libvirt: crash of libvirtd without guest agent configurationPatch
Products affected by CVE-2013-4154
- cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.0.3:*:*:*:*:*:*:*