#VU31094 Security Features in libvirt - CVE-2016-10746

Vulnerability identifier: #VU31094

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-10746

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libvirt
Universal components / Libraries / Libraries used by multiple products

Vendor: libvirt.org

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

libvirt-domain.c in libvirt before 1.3.1 supports virDomainGetTime API calls by guest agents with an RO connection, even though an RW connection was supposed to be required, a different vulnerability than CVE-2019-3886.

Mitigation
Install update from vendor's website.

Vulnerable software versions

libvirt: 1.3.0

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External links
https://github.com/libvirt/libvirt/commit/506e9d6c2d4baaf580d489fff0690c0ff2ff588f
https://github.com/libvirt/libvirt/compare/11288f5...8fd6867
https://lists.debian.org/debian-lts-announce/2019/04/msg00032.html

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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.