CVE-2021-21235 Infinite loop in parsing PNG files in

2021-01-0601:15:14

CWE-400

GitHub_M

www.cve.org

5.7 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.002 Low

EPSS

Percentile

56.6%

JSON

kamadak-exif is an exif parsing library written in pure Rust. In kamadak-exif version 0.5.2, there is an infinite loop in parsing crafted PNG files. Specifically, reader::read_from_container can cause an infinite loop when a crafted PNG file is given. This is fixed in version 0.5.3. No workaround is available. Applications that do not pass files with the PNG signature to Reader::read_from_container are not affected.

CNA Affected

[
  {
    "product": "exif-rs",
    "vendor": "kamadak",
    "versions": [
      {
        "status": "affected",
        "version": "= 0.5.2"
      }
    ]
  }
]