Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 89.5%; technical severity is CVSS 7.8.
A use-after-free vulnerability was discovered in Adobe Flash Player before 28.0.0.161. This vulnerability occurs due to a dangling pointer in the Primetime SDK related to media player handling of listener objects. A successful attack can lead to arbitrary code execution. This was exploited in the wild in January and February 2018.
Who should care
- Teams operating Flash Player, Enterprise Linux Desktop, Enterprise Linux Server +1 more
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Flash Player, Enterprise Linux Desktop, Enterprise Linux Server +1 more is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- The impacted product is end-of-life and should be disconnected if still in use.
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Vendor remediation
Patch and remediation links
Use the vendor source below to confirm the correct fixed version, package or mitigation for your affected product.
Technical details
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CWE
- CWE-416
- Affected versions
- Adobe Flash Player (End Excluding: 28.0.0.161); Redhat Enterprise Linux Desktop (Version: 6.0); Redhat Enterprise Linux Server (Version: 6.0); Redhat Enterprise Linux Workstation (Version: 6.0)
- Published
- 6 February 2018
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 89.5%
- Signal calculated at 85
External references
- Technical reference from github.com
- Government advisory from www.cisa.gov
- Third-party advisory from blog.talosintelligence.com
- Third-party advisory from access.redhat.com
- Third-party advisory from blog.morphisec.com
- Third-party advisory from github.com
- Third-party advisory from github.com
- Vendor advisory from helpx.adobe.com
- Exploit information from securingtomorrow.mcafee.com
- Third-party advisory from threatpost.com
- Third-party advisory from www.darkreading.com
- Exploit information from www.exploit-db.com