Zero-day vulnerability in Adobe Flash Player

Security bypass
CVE-2015-0310

The vulnerability was discovered and reported by security researcher Kafeine.
The vulnerability was used in attacks against older versions of Flash Player.

Known malware:

Angler EK.

Vulnerability details

Advisory: SB2015011401 - Security bypass in Adobe Flash Player

Vulnerable component: Adobe Flash Player

CVE-ID: CVE-2015-0310

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N/E:H/RL:O/RC:C

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Description:

The vulnerability allows a remote attacker to circumvent memory address randomization on the target system.

The weakness exists due to memory leak error. A remote attacker can create a specially crafted Web site, trick the victim into visiting it, trigger memory corruption, bypass memory address randomization on the Windows platform and obtain sensitive information.

Note: the vulnerability was being actively exploited.

External links:

https://helpx.adobe.com/security/products/flash-player/apsb15-02.html
https://ae.norton.com/security_response/writeup.jsp?docid=2015-021009-2659-99
https://www.beyondtrust.com/blog/adobe-patches-zero-day-flaw-being-exploited-in-the-wild/
https://www.intego.com/mac-security-blog/flash-player-0day-vulnerability-jolts-rushed-update/
http://www.pcworld.com/article/2874172/adobe-fixes-just-one-of-two-actively-exploited-zeroday-vulner...
http://www.eweek.com/security/new-zero-day-exploit-adds-to-adobe-flash-security-woes.html

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.