Ubuntu update for Spice

1) Buffer overflow

EUVDB-ID: #VU7549

Risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-7506

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error when processing SPICE protocol client messages in spice. A remote unauthenticated attacker can send a specially crafted message, trigger buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected packages

Ubuntu 17.04:

libspice-server1 0.12.8-2ubuntu1.1

Ubuntu 16.04 LTS:

libspice-server1 0.12.6-4ubuntu0.3

Ubuntu 14.04 LTS:

libspice-server1 0.12.4-0nocelt2ubuntu1.5

Vulnerable software versions

Ubuntu: 14.04 - 17.04

External links

http://www.ubuntu.com/usn/usn-3355-1/

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.