Freeware Advanced Audio Decoder 2.8.8 libfaad/sbr_hfadj.c calculate_gain memory corruption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.5 | $0-$5k | 0.00 |
A vulnerability has been found in Freeware Advanced Audio Decoder 2.8.8 (Audio Processing Software) and classified as critical. This vulnerability affects the function calculate_gain
of the file libfaad/sbr_hfadj.c. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
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 bug was discovered 12/16/2018. The weakness was disclosed 12/18/2018 (Website). The advisory is shared for download at github.com. This vulnerability was named CVE-2018-20194 since 12/17/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.
The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176933 (Debian Security Update for faad2 (DLA 1791-1)).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The entries 128095, 128096 and 128309 are pretty similar.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
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CVSSv3
VulDB Meta Base Score: 6.5VulDB Meta Temp Score: 6.5
VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
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Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
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Current Price Estimation: 🔍
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
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Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
12/16/2018 🔍12/17/2018 🔍
12/17/2018 🔍
12/18/2018 🔍
12/19/2018 🔍
06/19/2023 🔍
Sources
Advisory: 21Status: Confirmed
CVE: CVE-2018-20194 (🔍)
See also: 🔍
Entry
Created: 12/19/2018 07:51Updated: 06/19/2023 18:34
Changes: 12/19/2018 07:51 (61), 04/21/2020 18:56 (1), 06/19/2023 18:26 (3), 06/19/2023 18:34 (1)
Complete: 🔍
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