SB2019081804 - Gentoo update for VLC

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Double Free (CVE-ID: CVE-2019-12874)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing MKV files in zlib_decompress_extra() function in modules/demux/mkv/util.cpp. A remote attacker can create a specially crafted MKV file, trick the victim into opening it, trigger double free error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

2) Buffer overflow (CVE-ID: CVE-2019-5439)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing media files in libavi_plugin. A remote attacker can create a specially crafted Office document, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

References

• https://security.gentoo.org/
• https://security.gentoo.org/glsa/201908-23