Out-of-bounds write in stb_vorbis.c - CVE-2023-45676
Published: October 26, 2023 / Updated: January 3, 2025
Vulnerability identifier: #VU102290
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-45676
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
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.
Affected software
stb_vorbis.c
Fedora
SDL2_sound
libxmp
Fedora
SDL2_sound
libxmp
How to mitigate CVE-2023-45676
Install update from vendor's website.
SDL2_sound - addressed in versions 2.0.4-1.fc40, 2.0.4-1.fc41
libxmp - addressed in versions 4.6.1-2.fc40, 4.6.1-2.fc41
libxmp - addressed in versions 4.6.1-2.fc40, 4.6.1-2.fc41