SB2019081803 - Gentoo update for Adobe Flash Player

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Use-after-free (CVE-ID: CVE-2019-7096)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing .swf content. A remote attacker can trick the victim into visiting a specially crafted webpage or into opening a document with embedded malicious .swf file, trigger use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

2) Out-of-bounds read (CVE-ID: CVE-2019-7108)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when processing .swf files. A remote attacker can create a specially crafted .swf file, trick the victim into opening it while visiting a website or when viewing a document, trigger out-of-bounds read error and read contents of memory on the system.

3) Use-after-free (CVE-ID: CVE-2019-7845)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing .swf files. A remote attacker can create a specially crafted .swf file, trick the victim to open it, trigger use-after-free error and execute arbitrary code on the target system with privileges of the current user.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Remediation

Install update from vendor's website.

References

• https://security.gentoo.org/
• https://security.gentoo.org/glsa/201908-21