Qemu 'qemu-nbd' Tool Local Security Bypass Vulnerability

Bugtraq ID:	59070
Class:	Design Error
CVE:	CVE-2013-1922
Remote:	No
Local:	Yes
Published:	Apr 15 2013 12:00AM
Updated:	Apr 13 2015 09:40PM
Credit:	Daniel Berrange of Red Hat
Vulnerable:	XenSource Xen 4.2.1 XenSource Xen 4.2 RC XenSource Xen 4.2 S.u.S.E. openSUSE 12.3 QEMU QEMU 1.3 QEMU QEMU 1.2.0-rc3 QEMU QEMU 1.2.0 QEMU QEMU 1.1 Gentoo Linux
Not Vulnerable:	QEMU QEMU 1.4.1

Qemu 'qemu-nbd' Tool Local Security Bypass Vulnerability

Qemu is prone to a local security-bypass vulnerability.

Attackers can exploit this issue to bypass certain security restrictions and access arbitrary files of the host system.

Note: This issue was previously titled 'Xen 'qemu-nbd' Tool Local Security Bypass Vulnerability'. The title and technical details have been changed to better reflect the underlying component affected.

Qemu 'qemu-nbd' Tool Local Security Bypass Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Qemu 'qemu-nbd' Tool Local Security Bypass Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

Qemu 'qemu-nbd' Tool Local Security Bypass Vulnerability

References:

• CVE-2013-1922 qemu, qemu-kvm, kvm: qemu-nbd block format auto-detection vulnerab (Red Hat)
  
• QEMU Homepage (QEMU)
  
• Update version for 1.4.1 (Michael Roth)
  
• Xen Project Homepage (Xen Project)
  
• Xen Security Advisory 48 (CVE-2013-1922) - qemu-nbd format-guessing due to missi (Xen)