SB2020072725 - Gentoo update for WavPack

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Infinite loop (CVE-ID: CVE-2018-19840)

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists in the WavpackPackInit function, as defined in the pack_utils.csource code file due to the WavpackSetConfiguration64 function improperly handles a block sample rate of zero. A remote attacker can trick the victim into accessing a .wav file that submits malicious, trigger an infinite loop condition that could consume excessive resources and cause the affected software to crash, resulting in a DoS condition.

2) Out-of-bounds read (CVE-ID: CVE-2018-19841)

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists in the WavpackVerifySingleBlock function, as defined in the open_utils.c source code file due to improper processing of WavPack lossless audio files. A remote attacker can trick the victim into accessing a WavPack lossless audio file that submits malicious, trigger an out-of-bounds read condition and cause the affected software to crash, resulting in a DoS condition.

3) Input validation error (CVE-ID: CVE-2019-11498)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the WavpackSetConfiguration64() function in the pack_utils.c file within the libwavpack.a. A remote attacker can trick the victim to open a specially crafted DFF file that lacks valid sample-rate data and crash the affected application. 

Remediation

Install update from vendor's website.

References

• https://security.gentoo.org/
• https://security.gentoo.org/glsa/202007-19