1) Type confusion

Risk: Critical

CVSSv3: 9.2 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C] [PCI]

CVE-ID: CVE-2015-7645

CWE-ID: CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')

Exploit availability: Yes

Description

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

The weakness exists due to type confusion error. A remote attacker can create a specially crafted Web site, trick the victim into visiting it, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation results in arbitrary code execution on the vulnerable system.

Note: the vulnerability was being actively exploited.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Adobe Flash Player for Linux: 11.2.202.238, 11.2.202.261, 11.2.202.262, 11.2.202.270, 11.2.202.273, 11.2.202.327, 11.2.202.332, 11.2.202.335, 11.2.202.336, 11.2.202.341, 11.2.202.350, 11.2.202.356, 11.2.202.418, 11.2.202.424, 11.2.202.425, 11.2.202.451, 11.2.202.457, 11.2.202.535, 11.2.202.540

Adobe Flash Player: 16.0.0.234, 17.0.0.134, 17.0.0.169, 18.0.0.161, 18.0.0.194, 18.0.0.209, 18.0.0.232, 18.0.0.241, 18.0.0.252, 18.0.0.255, 18.0.0.261, 18.0.0.324, 18.0.0.326, 18.0.0.329, 18.0.0.333, 18.0.0.343, 19.0.0.185, 19.0.0.207, 19.0.0.226

Adobe Flash Player Extended Support Release: 18.0.0.268

CPE

• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.540:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.535:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.457:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.451:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.425:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.341:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.418:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.424:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.336:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.335:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.356:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.350:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.332:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.327:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.273:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.270:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.261:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.262:
• cpe:/a:adobe:adobe_flash_player_for_linux:11.2.202.238:
• cpe:/a:adobe:adobe_flash_player:19.0.0.226:
• cpe:/a:adobe:adobe_flash_player:17.0.0.169:
• cpe:/a:adobe:adobe_flash_player:17.0.0.134:
• cpe:/a:adobe:adobe_flash_player:16.0.0.234:
• cpe:/a:adobe:adobe_flash_player:19.0.0.207:
• cpe:/a:adobe:adobe_flash_player:19.0.0.185:
• cpe:/a:adobe:adobe_flash_player:18.0.0.343:
• cpe:/a:adobe:adobe_flash_player:18.0.0.333:
• cpe:/a:adobe:adobe_flash_player:18.0.0.329:
• cpe:/a:adobe:adobe_flash_player:18.0.0.326:
• cpe:/a:adobe:adobe_flash_player:18.0.0.324:
• cpe:/a:adobe:adobe_flash_player_extended_support_release:18.0.0.268:
• cpe:/a:adobe:adobe_flash_player:18.0.0.261:
• cpe:/a:adobe:adobe_flash_player:18.0.0.255:
• cpe:/a:adobe:adobe_flash_player:18.0.0.252:
• cpe:/a:adobe:adobe_flash_player:18.0.0.241:
• cpe:/a:adobe:adobe_flash_player:18.0.0.232:
• cpe:/a:adobe:adobe_flash_player:18.0.0.209:
• cpe:/a:adobe:adobe_flash_player:18.0.0.194:
• cpe:/a:adobe:adobe_flash_player:18.0.0.161:

External links

https://helpx.adobe.com/security/products/flash-player/apsb15-27.html

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.