SB2019092443 - Stack-based buffer underflow in faad2 (Alpine package)

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Main Vulnerability Database SB2019092443

SB2019092443 - Stack-based buffer underflow in faad2 (Alpine package)

Published: September 24, 2019

Security Bulletin ID SB2019092443
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Partial DoS

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Stack-based buffer underflow (CVE-ID: CVE-2018-20197)

CWE-ID: CWE-124 - Buffer Underwrite ('Buffer Underflow')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear


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

The vulnerability exists due to the calculate_gain function, as defined in the libfaad/sbr_hfadj.c source code file of the affected software, mishandles noise energy level for the G_max = G case. A local attacker can submit malicious input and trigger a stack-based buffer underflow condition that causes the affected software to crash, resulting in a DoS condition.


Remediation

Install update from vendor's website.

References