Multiple vulnerabilities in libvirt

Published: 2014-01-07 | Updated: 2021-04-01

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2014-0028 CVE-2013-6436
CWE-ID	CWE-264 CWE-476
Exploitation vector	Local network
Public exploit	N/A
Vulnerable software	libvirt Universal components / Libraries / Libraries used by multiple products
Vendor	libvirt.org

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU42111

Risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2014-0028

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

libvirt 1.1.1 through 1.2.0 allows context-dependent attackers to bypass the domain:getattr and connect:search_domains restrictions in ACLs and obtain sensitive domain object information via a request to the (1) virConnectDomainEventRegister and (2) virConnectDomainEventRegisterAny functions in the event registration API.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libvirt: 1.1.1 - 1.2.0

CPE2.3

External links

https://libvirt.org/news.html
https://lists.opensuse.org/opensuse-updates/2014-02/msg00060.html
https://secunia.com/advisories/60895
https://security.gentoo.org/glsa/glsa-201412-04.xml
https://www.ubuntu.com/usn/USN-2093-1
https://bugzilla.redhat.com/show_bug.cgi?id=1048637
https://www.redhat.com/archives/libvir-list/2014-January/msg00684.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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

2) NULL pointer dereference

EUVDB-ID: #VU42175

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2013-6436

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 guest in the shutdown status, as demonstrated by the "virsh memtune" command.