CVE-2023-45666

2023-10-2100:15:09

CWE-415

[email protected]

web.nvd.nist.gov

stb_image

library

vulnerability

memory leak

double-free

stbi__load_gif_main

cve-2023-45666

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.2 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

41.4%

JSON

stb_image is a single file MIT licensed library for processing images. It may look like stbi__load_gif_main doesn’t give guarantees about the content of output value *delays upon failure. Although it sets *delays to zero at the beginning, it doesn’t do it in case the image is not recognized as GIF and a call to stbi__load_gif_main_outofmem only frees possibly allocated memory in *delays without resetting it to zero. Thus it would be fair to say the caller of stbi__load_gif_main is responsible to free the allocated memory in *delays only if stbi__load_gif_main returns a non null value. However at the same time the function may return null value, but fail to free the memory in *delays if internally stbi__convert_format is called and fails. Thus the issue may lead to a memory leak if the caller chooses to free delays only when stbi__load_gif_main didn’t fail or to a double-free if the delays is always freed

Affected configurations

Vulners

NVD

Node

nothingsstb_image.hRange≤2.28

VendorProductVersionCPE
nothingsstb_image\.h*cpe:2.3:a:nothings:stb_image\.h:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
nothings	stb_image\.h	*	cpe:2.3:a:nothings:stb_image\.h::::::::

CNA Affected

[
  {
    "vendor": "nothings",
    "product": "stb",
    "versions": [
      {
        "version": "<= 2.28",
        "status": "affected"
      }
    ]
  }
]