Vulnerability Details : CVE-2013-6456
The LXC driver (lxc/lxc_driver.c) in libvirt 1.0.1 through 1.2.1 allows local users to (1) delete arbitrary host devices via the virDomainDeviceDettach API and a symlink attack on /dev in the container; (2) create arbitrary nodes (mknod) via the virDomainDeviceAttach API and a symlink attack on /dev in the container; and cause a denial of service (shutdown or reboot host OS) via the (3) virDomainShutdown or (4) virDomainReboot API and a symlink attack on /dev/initctl in the container, related to "paths under /proc/$PID/root" and the virInitctlSetRunLevel function.
Vulnerability category: Denial of service
Products affected by CVE-2013-6456
- cpe:2.3:a:redhat:libvirt:1.0.1:*:*:*:*:*:*:*
- 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:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.0.5.5:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.0.5.4:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.0.5.3:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.0.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.0.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.0.5.6:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.1.4:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:libvirt:1.2.1:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2013-6456
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2013-6456
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.8
|
MEDIUM | AV:A/AC:M/Au:S/C:N/I:P/A:C |
4.4
|
7.8
|
NIST |
CWE ids for CVE-2013-6456
-
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.Assigned by: nvd@nist.gov (Primary)
References for CVE-2013-6456
-
http://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=5fc590ad9f4
libvirt.org Git
-
http://www.securityfocus.com/bid/65743
libvirt Unsafe Paths Usage Symlink Multiple Security Vulnerabilities
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http://security.gentoo.org/glsa/glsa-201412-04.xml
libvirt: Multiple vulnerabilities (GLSA 201412-04) — Gentoo security
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http://security.libvirt.org/2013/0018.html
Libvirt Security Notice: LSN-2013-0018Vendor Advisory
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https://bugzilla.redhat.com/show_bug.cgi?id=1045643
1045643 – CVE-2013-6456 libvirt: vulnerability in virInitctlSetRunLevel [rhel-7.0]
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https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=732394
#732394 - libvirt-bin: CVE-2013-6456: virsh shutdown does not handle symlinks correctly for LXC - Debian Bug report logs
-
http://libvirt.org/news.html
libvirt: Releases
-
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/129199.html
[SECURITY] Fedora 20 Update: libvirt-1.1.3.4-1.fc20
-
http://lists.opensuse.org/opensuse-updates/2014-05/msg00004.html
openSUSE-SU-2014:0593-1: moderate: libvirt
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