CVE-2023-45676

Multi-byte write heap buffer overflow in start_decoder in stb_vorbis

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

stb_vorbis is a single file MIT licensed library for processing ogg vorbis files. A crafted file may trigger out of bounds write in `f->vendor[i] = get8_packet(f);`. The root cause is an integer overflow in `setup_malloc`. A sufficiently large value in the variable `sz` overflows with `sz+7` in and the negative value passes the maximum available memory buffer check. This issue may lead to code execution.

stb_vorbis es una librería de archivo único con licencia MIT para procesar archivos ogg vorbis. Un archivo manipulado puede provocar una escritura fuera de límites en `f->vendor[i] = get8_packet(f);`. La causa principal es un desbordamiento de enteros en `setup_malloc`. Un valor suficientemente grande en la variable `sz` se desborda con `sz+7` y el valor negativo pasa la verificación del búfer de memoria máxima disponible. Este problema puede provocar la ejecución del código.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

Poc

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-10-10 CVE Reserved
2023-10-20 CVE Published
2023-10-27 EPSS Updated
2024-09-12 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (3)

URL	Tag	Source
https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L3656	Third Party Advisory
https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L950-L960	Third Party Advisory
https://securitylab.github.com/advisories/GHSL-2023-145_GHSL-2023-151_stb_image_h	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Nothings Search vendor "Nothings"		Stb Vorbis.c Search vendor "Nothings" for product "Stb Vorbis.c"				1.22 Search vendor "Nothings" for product "Stb Vorbis.c" and version "1.22"		-		Affected