Use After Free in Adobe Flash Player
CVE-2015-5122
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.939 (99.8th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.940 · newest: 0.939 · change: -0.001
Affected products
- Adobe Flash Player
- Adobe Flash Player Desktop Runtime
- Apple macOS
- Linux Kernel
- Microsoft Windows
- Microsoft Windows 8
- Microsoft Windows 8.1
- openSUSE Evergreen — versions 11.4
- Red Hat Enterprise Linux Desktop — versions 5.0, 6.0
- Red Hat Enterprise Linux Server — versions 5.0, 6.0
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: The impacted product is end-of-life and should be disconnected if still in use.
Public proof-of-concept exploits
References
- www.securitytracker.com/id/1032890 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- lists.opensuse.org/opensuse-security-announce/2015-07/msg00028.html (vendor-advisory, Mailing List, Third Party Advisory)
- marc.info/ (vendor-advisory, Mailing List, Third Party Advisory)
- h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay (Third Party Advisory)
- www.fireeye.com/blog/threat-research/2015/07/cve-2015-5122_-_seco.html (Third Party Advisory, Broken Link)
- www.us-cert.gov/ncas/alerts/TA15-195A (US Government Resource, Third Party Advisory, third-party-advisory)
- helpx.adobe.com/security/products/flash-player/apsb15-18.html (Broken Link, Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2015-07/msg00029.html (vendor-advisory, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/201508-01 (vendor-advisory, Third Party Advisory)
- www.rapid7.com/db/modules/exploit/multi/browser/adobe_flash_opaque_background_u… (Third Party Advisory)
Frequently asked questions
- What is CVE-2015-5122?
- CVE-2015-5122 is a critical-severity vulnerability in Adobe Flash Player, classified under Use After Free. CVSS score: 9.8/10. Published 2015-07-14.
- How severe is CVE-2015-5122?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2015-5122 known to be exploited?
- Yes. CVE-2015-5122 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-04-13), indicating it is being actively exploited. 21 public proof-of-concept repositories are indexed.