Out-of-bounds Write Affecting nothings/stb package, versions [0,]


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.09% (39th percentile)

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  • Snyk IDSNYK-UNMANAGED-NOTHINGSSTB-6026546
  • published22 Oct 2023
  • disclosed21 Oct 2023
  • creditUnknown

Introduced: 21 Oct 2023

CVE-2023-45677  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for nothings/stb.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Write in the f->vendor[len] = (char)'\0'; function. An attacker can trigger an out-of-bounds write and potentially execute arbitrary code by providing a crafted file. This is only exploitable if len read in start_decoder is a negative number and setup_malloc successfully allocates memory in that case, but memory write is done with a negative index len. Similarly if len is INT_MAX the integer overflow len+1 happens in f->vendor = (char*)setup_malloc(f, sizeof(char) * (len+1)); and f->comment_list[i] = (char*)setup_malloc(f, sizeof(char) * (len+1));.

CVSS Scores

version 3.1