CVE-2018-4878

Known Exploited Public Exploit

Description

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 93.38% Top 5%
KEV Since 
Vendor Advisory redhat.com Vendor Advisory adobe.com
Affected: n/a Adobe Flash Player before 28.0.0.161
Published at:
Updated at:

References

Link Tags
http://blog.talosintelligence.com/2018/02/group-123-goes-wild.html third party advisory technical description
https://threatpost.com/adobe-flash-player-zero-day-spotted-in-the-wild/129742/ third party advisory
https://helpx.adobe.com/security/products/flash-player/apsb18-03.html vendor advisory
https://access.redhat.com/errata/RHSA-2018:0285 third party advisory vendor advisory
http://www.securitytracker.com/id/1040318 vdb entry broken link
http://www.securityfocus.com/bid/102893 vdb entry broken link
https://www.fireeye.com/blog/threat-research/2018/02/attacks-leveraging-adobe-zero-day.html third party advisory
https://blog.morphisec.com/flash-exploit-cve-2018-4878-spotted-in-the-wild-massive-malspam-campaign third party advisory
https://www.darkreading.com/threat-intelligence/adobe-flash-vulnerability-reappears-in-malicious-word-files/d/d-id/1331139 third party advisory press/media coverage
https://github.com/InQuest/malware-samples/tree/master/CVE-2018-4878-Adobe-Flash-DRM-UAF-0day third party advisory
https://www.trendmicro.com/vinfo/us/security/news/vulnerabilities-and-exploits/north-korean-hackers-allegedly-exploit-adobe-flash-player-vulnerability-cve-2018-4878-against-south-korean-targets third party advisory technical description
https://github.com/vysec/CVE-2018-4878 third party advisory
https://securingtomorrow.mcafee.com/mcafee-labs/hackers-bypassed-adobe-flash-protection-mechanism/ third party advisory exploit
https://www.exploit-db.com/exploits/44412/ third party advisory vdb entry exploit

Frequently Asked Questions

What is the severity of CVE-2018-4878?
CVE-2018-4878 has been scored as a critical severity vulnerability.
How to fix CVE-2018-4878?
To fix CVE-2018-4878, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-4878 being actively exploited in the wild?
It is confirmed that CVE-2018-4878 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~93% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-4878?
CVE-2018-4878 affects n/a Adobe Flash Player before 28.0.0.161.
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