5.5

CVE-2023-45680: nothings stb NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2023-45680DEBIAN-CVE-2023-45680
Published 20-10-2023Last modified 11-09-2024
Open JSON

Vulnerability summary

CVE-2023-45680 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in nothings stb. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 43.9% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.53%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
MGASA-2026-0191OPENSUSE-SU-2025:0037-1

Timeline

  1. 20-10-2023
    PublishedVulnerability first disclosed.
  2. 11-09-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.53%

Chance of exploitation in the next 30 days

Percentile

44%

Versus all other CVEs

30-day change

0.00 pp

From 0.53% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.53%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Nothings2 products
Debian1 product
  • libstbAll versions (No fix recorded)
Ubuntu1 product
  • libstbAll versions (No fix recorded)

3 vendors · 4 products

References

7 links