SB2018031902 - Gentoo update for Adobe Flash Player
Published: March 19, 2018
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Out-of-bounds read (CVE-ID: CVE-2018-4871)
The vulnerability allows a remote attacker to obtain potentially sensitive information.
The vulnerability exists due to out-of-bounds read error. A remote attacker can trick the victim into loading a specially crafted content gain and access to arbitrary data on the target system.
2) Use-after-free (CVE-ID: CVE-2018-4877)
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.
3) Use-after-free (CVE-ID: CVE-2018-4878)
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.
4) Use-after-free (CVE-ID: CVE-2018-4919)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to use-after-free error when processing .swf content. A remote unauthenticated attacker can create a specially crafted .swf file, trick the victim into opening it by visiting a malicious web page and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
5) Type confusion (CVE-ID: CVE-2018-4920)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to type confusion error when processing .swf content. A remote unauthenticated attacker can create a specially crafted .swf file, trick the victim into opening it by visiting a malicious web page and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.