CVE-2018-4878
HIGH severity · CVSS 7.8 · Use-after-free · actively exploited (CISA KEV)
7.8CVSS HIGH ● exploited ⚠ ransomware
🔴 Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
⚠ Known use in ransomware campaigns. Added to KEV 2021-11-03. US federal agencies must patch by 2022-05-03.
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)94%
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://helpx.adobe.com/security/products/flash-player/apsb18-03.htmlAdvisory
- http://blog.talosintelligence.com/2018/02/group-123-goes-wild.htmlAdvisory
- http://www.securityfocus.com/bid/102893
- http://www.securitytracker.com/id/1040318
- https://access.redhat.com/errata/RHSA-2018:0285Advisory
- https://blog.morphisec.com/flash-exploit-cve-2018-4878-spotted-in-the-wild-massive-malspam-campaignAdvisory
- https://github.com/InQuest/malware-samples/tree/master/CVE-2018-4878-Adobe-Flash-DRM-UAF-0dayAdvisory
- https://github.com/vysec/CVE-2018-4878Advisory