SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2015-5119

Adobe Flash Player Use-After-Free Vulnerability

KEVCRITICAL 9.8EPSS 99.3%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 24 March 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

Use-after-free vulnerability in the ByteArray class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.296 and 14.x through 18.0.0.194 on Windows and OS X and 11.x through 11.2.202.468 on Linux allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted Flash content that overrides a valueOf function, as exploited in the wild in July 2015.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
99.34% probability · 100th percentile
CISA KEV
Listed 3 March 2022 · due 24 March 2022
Weakness
CWE-416
Affected
adobe/flash player · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server from rhui · redhat/enterprise linux workstation · opensuse/evergreen · opensuse/opensuse · suse/linux enterprise desktop · suse/linux enterprise workstation extension
Source
psirt@adobe.com

CISA notes

The impacted product is end-of-life and should be disconnected if still in use. https://nvd.nist.gov/vuln/detail/CVE-2015-5119

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.