Out-of-bounds Write Affecting libstb package, versions *


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.08% (35th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-LIBSTB-6023926
  • published22 Oct 2023
  • disclosed21 Oct 2023

Introduced: 21 Oct 2023

CVE-2023-45675  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Debian:unstable libstb.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libstb package and not the libstb package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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.

CVSS Scores

version 3.1