Description
Use-after-free vulnerability in the DisplayObject class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.302 on Windows and OS X, 14.x through 18.0.0.203 on Windows and OS X, 11.x through 11.2.202.481 on Linux, and 12.x through 18.0.0.204 on Linux Chrome installations allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted Flash content that leverages improper handling of the opaqueBackground property, as exploited in the wild in July 2015.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | flashplugin-nonfree | 11.2.202.481ubuntu0.14.04.2 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | flash-plugin | 11.2.202.491-1.el6_6 | RHSA-2015:1235 |
| RHEL 5 | flash-plugin | 11.2.202.491-1.el5 | RHSA-2015:1235 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | flash-player | 11.2.202.491-96.1 | SUSE-SU-2015:1255-1 |
| SLES 11 SP4 | flash-player | 11.2.202.491-0.11.1 | SUSE-SU-2015:1258-1 |
| SLES 11 SP3 | flash-player | 11.2.202.491-0.11.1 | SUSE-SU-2015:1258-1 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Metasploit 1 module
-
Adobe Flash opaqueBackground Use After Free
exploit/multi/browser/adobe_flash_opaque_background_uaf
Exploit-DB 1
- Adobe Flash - opaqueBackground Use-After-Free (Metasploit) EDB-37599 · remote · Jul 13, 2015 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 3
- RHSA-2015:1235 Red Hat Security Advisory: flash-plugin security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- SUSE-SU-2015:1258-1 Security update for flash-player SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1255-1 Security update for flash-player SUSE / openSUSE Security Updates · Feb 4, 2026
References
- 1032890 vdb-entry
- SUSE-SU-2015:1255 vendor-advisory
- HPSBMU03409 vendor-advisory
- https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04952467
- https://www.fireeye.com/blog/threat-research/2015/07/cve-2015-5122_-_seco.html
- TA15-195A third-party-advisory
- https://helpx.adobe.com/security/products/flash-player/apsb15-18.html
- SUSE-SU-2015:1258 vendor-advisory
- GLSA-201508-01 vendor-advisory
- http://www.rapid7.com/db/modules/exploit/multi/browser/adobe_flash_opaque_background_uaf
- HPSBHF03509 vendor-advisory
- RHSA-2015:1235 vendor-advisory
- VU#338736 third-party-advisory
- 37599 exploit
- 75712 vdb-entry
- http://packetstormsecurity.com/files/132663/Adobe-Flash-opaqueBackground-Use-After-Free.html
- openSUSE-SU-2015:1267 vendor-advisory
- https://perception-point.io/2018/04/11/breaking-cfi-cve-2015-5122-coop/
- https://helpx.adobe.com/security/products/flash-player/apsa15-04.html
- https://perception-point.io/new/breaking-cfi.php