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[len] = (char)'\0';`. The root cause is that if the len read in `start_decoder` is `-1` and `len + 1` becomes 0 when passed to `setup_malloc`. The `setup_malloc` behaves differently when `f->alloc.alloc_buffer` is pre-allocated. Instead of returning `NULL` as in `malloc` case it shifts the pre-allocated buffer by zero and returns the currently available memory block. This issue may lead to code execution.
Advisories
Source ID Title
EUVD EUVD EUVD-2023-49965 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[len] = (char)'\0';`. The root cause is that if the len read in `start_decoder` is `-1` and `len + 1` becomes 0 when passed to `setup_malloc`. The `setup_malloc` behaves differently when `f->alloc.alloc_buffer` is pre-allocated. Instead of returning `NULL` as in `malloc` case it shifts the pre-allocated buffer by zero and returns the currently available memory block. This issue may lead to code execution.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 13 Feb 2025 18:15:00 +0000

Type Values Removed Values Added
First Time appeared Nothings stb
CPEs cpe:2.3:a:nothings:stb:*:*:*:*:*:*:*:*
Vendors & Products Nothings stb
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-02-13T17:14:07.600Z

Reserved: 2023-10-10T14:36:40.861Z

Link: CVE-2023-45675

cve-icon Vulnrichment

Updated: 2024-08-02T20:21:16.836Z

cve-icon NVD

Status : Modified

Published: 2023-10-21T00:15:09.207

Modified: 2024-11-21T08:27:11.510

Link: CVE-2023-45675

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.