CVE-2023-45680 - CVE House
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Status published Medium CVE-2023-45680

Null pointer dereference in vorbis_deinit in stb_vorbis

Vulnerability Description

stb_vorbis is a single file MIT licensed library for processing ogg vorbis files. A crafted file may trigger memory allocation failure in `start_decoder`. In that case the function returns early, the `f->comment_list` is set to `NULL`, but `f->comment_list_length` is not reset. Later in `vorbis_deinit` it tries to dereference the `NULL` pointer. This issue may lead to denial of service.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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CVE-2023-45682
Wild address read in vorbis_decode_packet_rest in stb_vorbis
Medium 5.3
CVE-2023-45681
Out of bounds heap buffer write in stb_vorbis
High 7.3
CVE-2023-45679
Attempt to free an uninitialized memory pointer in vorbis_deinit in stb_vorbis
High 7.3
CVE-2023-45678
Off-by-one heap buffer write in start_decoder in stb_vorbis
Medium 6.5
CVE-2023-45677
Heap buffer out of bounds write in start_decoder in stb_vorbis
High 7.3

Affected Vendor

Affected Software

stb
Vulnerable Versions:
<= 1.22

Timeline

Official Publish: October 20th, 2023
Last Modified: September 11th, 2024
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weaknesses (CWE)

CWE-476

MITRE ATT&CK TTPs

T1499 Endpoint Denial of Service
Impact
T1499.004 Application or System Exploitation
Impact
T1489 Service Stop
Impact
T1203 Exploitation for Client Execution
Execution
T1190 Exploit Public-Facing Application
Initial Access