CVE-2021-34334 Denial of service due to integer overflow in loop counter

2021-08-0900:00:00

CWE-835

GitHub_M

www.cve.org

cve-2021-34334

integer overflow

loop counter

exiv2

image files

denial of service

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.3

Confidence

High

EPSS

0.001

Percentile

44.7%

JSON

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An infinite loop is triggered when Exiv2 is used to read the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. The bug is fixed in version v0.27.5.

CNA Affected

[
  {
    "vendor": "Exiv2",
    "product": "exiv2",
    "versions": [
      {
        "version": "<= 0.27.4",
        "status": "affected"
      }
    ]
  }
]