Vulnerabilities
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CVE Vulnerabilities

CVE-2016-4121

Use After Free

Published: Jun 16, 2016 | Modified: Apr 12, 2025
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
6.8 CRITICAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V3
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2016-4121
CWEhttps://cwe.mitre.org/data/definitions/416.html

Use-after-free vulnerability in Adobe Flash Player before 18.0.0.352 and 19.x through 21.x before 21.0.0.242 on Windows and OS X and before 11.2.202.621 on Linux allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2016-1097, CVE-2016-1106, CVE-2016-1107, CVE-2016-1108, CVE-2016-1109, CVE-2016-1110, CVE-2016-4108, and CVE-2016-4110.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

NameVendorStart VersionEnd Version
Windows_10Microsoft- (including)- (including)
Windows_8.1Microsoft- (including)- (including)
Red Hat Enterprise Linux 5 SupplementaryRedHatflash-plugin-0:11.2.202.621-1.el5*
Red Hat Enterprise Linux 6 SupplementaryRedHatflash-plugin-0:11.2.202.621-1.el6_8*
Adobe-flashpluginUbuntudevel*
Adobe-flashpluginUbuntuprecise*
Adobe-flashpluginUbuntutrusty*
Adobe-flashpluginUbuntuwily*
Adobe-flashpluginUbuntuxenial*
Flashplugin-nonfreeUbuntudevel*
Flashplugin-nonfreeUbuntuesm-apps/xenial*
Flashplugin-nonfreeUbuntuprecise*
Flashplugin-nonfreeUbuntutrusty*
Flashplugin-nonfreeUbuntuwily*
Flashplugin-nonfreeUbuntuxenial*

Potential Mitigations

References

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