There is a stack-based buffer underflow in the third instance of the calculate_gain function in libfaad/sbr_hfadj.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. A crafted input will lead to a denial of service or possibly unspecified other impact because limiting the additional noise energy level is mishandled for the G_max > G case.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - There is a stack-based buffer underflow in the third instance of the calculate_gain function in     libfaad/sbr_hfadj.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. A crafted input will lead to a     denial of service or possibly unspecified other impact because limiting the additional noise energy level     is mishandled for the G_max > G case. (CVE-2018-20197)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote host is affected by the vulnerability described in GLSA-202006-17 (FAAD2: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in FAAD2. Please review       the CVE identifiers referenced below for details.
  Impact :

    Please review the referenced CVE identifiers for details.
  Workaround :

    There is no known workaround at this time.

Multiple vulnerabilities have been discovered in faad2, the Freeware Advanced Audio Coder. These vulnerabilities might allow remote attackers to cause denial-of-service, or potentially execute arbitrary code if crafted MPEG AAC files are processed.

Multiple vulnerabilities have been found in faad2, the Freeware Advanced Audio Coder :

CVE-2018-20194 CVE-2018-20197

Improper handling of implicit channel mapping reconfiguration leads to multiple heap based buffer overflow issues. These flaws might be leveraged by remote attackers to cause DoS.

CVE-2018-20198 CVE-2018-20362

Insufficient user input validation in the sbr_hfadj module leads to stack-based buffer underflow issues. These flaws might be leveraged by remote attackers to cause DoS or any other unspecified impact.

For Debian 8 'Jessie', these problems have been fixed in version 2.7-8+deb8u2.

We recommend that you upgrade your faad2 packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
258424	Linux Distros Unpatched Vulnerability : CVE-2018-20197	Nessus	Misc.	high
137454	GLSA-202006-17 : FAAD2: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
128782	Debian DSA-4522-1 : faad2 - security update	Nessus	Debian Local Security Checks	high
125267	Debian DLA-1791-1 : faad2 security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2018-20197

high

Tenable Plugins

high

high

high

high