Two remote code execution vulnerabilities in Adobe Flash Player

Published: 2015-07-10 | Updated: 2017-01-27
Severity Critical
Patch available YES
Number of vulnerabilities 2
CVE ID CVE-2015-5123
CVE-2015-5122
CWE ID CWE-119
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerability #2 is being exploited in the wild.
Vulnerable software Adobe Flash Player Extended Support Release Subscribe
Adobe Flash Player for Linux
Adobe Flash Player
Vendor Adobe

Security Advisory

1) “Use-after-free” error

Severity: Critical

CVSSv3: 8.9 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C] [PCI]

CVE-ID: CVE-2015-5123

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Description

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

The weakness exists due to use-after-free error in the ActionScript 3 BitmapData class. 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 Extended Support Release: 13.0.0.302, 13.0.0.309

Adobe Flash Player for Linux: 11.2.202.481, 11.2.202.491

Adobe Flash Player: 18.0.0.203, 18.0.0.209

CPE External links

https://helpx.adobe.com/security/products/flash-player/apsb15-18.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?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.

2) “Use-after-free” error

Severity: Critical

CVSSv3: 8.9 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C] [PCI]

CVE-ID: CVE-2015-5122

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Description

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

The weakness exists due to use-after-free error in the ActionScript 3 opaqueBackground class. 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 Extended Support Release: 13.0.0.302, 13.0.0.309

Adobe Flash Player for Linux: 11.2.202.481, 11.2.202.491

Adobe Flash Player: 18.0.0.203, 18.0.0.209

CPE External links

https://helpx.adobe.com/security/products/flash-player/apsb15-18.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?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.