Microsoft update for Adobe Flash Player

Published: 2018-02-07

Risk	Critical
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2018-4878 CVE-2018-4877
CWE-ID	CWE-416
Exploitation vector	Network
Public exploit	Vulnerability #1 is being exploited in the wild.
Vulnerable software Subscribe	Windows Operating systems & Components / Operating system Windows Server Operating systems & Components / Operating system
Vendor	Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU10355

Risk: Critical

CVSSv3.1: 9.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2018-4878

CWE-ID: CWE-416 - Use After Free

Exploit availability: Yes

Description

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

The vulnerability exists due to a use-after-free error when processing .swf files. A remote attacker can execute arbitrary code on the target system.

Note: this vulnerability is being actively exploited in the wild against the latest version of Adobe Flash Player.

UPDATE: The vendor has issued the fixed version on February 6, 2018.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 8.1 - 10

Windows Server: 2012 - 2016 10.0.14393.10

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV180004

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?

Yes. This vulnerability is being exploited in the wild.

2) Use-after-free

EUVDB-ID: #VU10387

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-2018-4877