Freeware Advanced Audio Coder (FAAC) 1.28 - Denial of Service

2017-06-2000:00:00

qflb.wu

www.exploit-db.com

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

5.8 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

56.3%

JSON

Freeware Advanced Audio Coder (FAAC) multiple vulnerabilities

================
Author : qflb.wu
===============

Introduction:
=============
FAAC is an encoder for a lossy sound compression scheme specified in MPEG-2 Part 7 and MPEG-4 Part 3 standards and known as Advanced Audio Coding (AAC). This encoder is useful for producing files that can be played back on iPod. Moreover, iPod does not understand other sound compression schemes in video files.

Affected version:
=====
1.28

Vulnerability Description:
==========================
1.
the wav_open_read function in frontend/input.c in Freeware Advanced Audio Coder (FAAC) 1.28 can cause a denial of service(large loop) via a crafted wav file.

./faac faac_1.28_wav_open_read_large_loop.wav -o out.aac

POC:
faac_1.28_wav_open_read_large_loop.wav
CVE:
CVE-2017-9129

2.
the faacEncOpen function in libfaac/frame.c in Freeware Advanced Audio Coder (FAAC) 1.28 can cause a denial of service(invalid memory read and application crash) via a crafted wav file.

./faac faac_1.28_faacEncOpen_invalid_memory.wav -o out.aac

ASAN:SIGSEGV
=================================================================
==49677==ERROR: AddressSanitizer: SEGV on unknown address 0x7f3e959c9b34 (pc 0x7f3e96bf7739 sp 0x7ffe47c93980 bp 0x000000a59e50 T0)
    #0 0x7f3e96bf7738 in faacEncOpen /home/a/Downloads/faac-1.28/libfaac/frame.c:368
    #1 0x49c444 in main /home/a/Downloads/faac-1.28/frontend/main.c:803
    #2 0x7f3e959d3ec4 (/lib/x86_64-linux-gnu/libc.so.6+0x21ec4)
    #3 0x49311c in _start (/home/a/Downloads/faac-1.28/frontend/.libs/lt-faac+0x49311c)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /home/a/Downloads/faac-1.28/libfaac/frame.c:368 faacEncOpen
==49677==ABORTING

POC:
faac_1.28_faacEncOpen_invalid_memory.wav
CVE:
CVE-2017-9130

===============================

Proofs of Concept:
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/42207.zip