CVE-2018-4877 Use after free in Adobe Flash Player before 28.0.0.161

Critical 9.8 Published Updated

A use-after-free vulnerability in Adobe Flash Player allows attackers to execute arbitrary code via a dangling pointer in the Primetime SDK.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2018-4877?

CVE-2018-4877 is a critical use after free vulnerability in Adobe Flash Player, published on 6 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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's quality of service functionality. A successful attack can lead to arbitrary code execution.

Weakness: CWE-416

Which versions are affected by CVE-2018-4877?

It affects 4 products.

Products include Adobe Flash Player, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.

How do I fix CVE-2018-4877?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2018-4877 being exploited?

There is no known exploitation of CVE-2018-4877 in the wild and no public exploit code.

All Adobe Flash Player vulnerabilities

Sources

Also known as GHSA-hcf8-mxwr-h337, UBUNTU-CVE-2018-4877.

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