CVE-2021-32815 Denial of service due to assertion failure in crwimage_int.cpp

2021-08-0900:00:00

CWE-617

GitHub_M

www.cve.org

exiv2

denial of service

assertion failure

crwimage_int.cpp

crafted image file

metadata vulnerability

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

6.4

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. The assertion failure is triggered when Exiv2 is used to modify 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. Note that this bug is only triggered when modifying the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as fi. ### Patches The bug is fixed in version v0.27.5. ### References Regression test and bug fix: #1739 ### For more information Please see our security policy for information about Exiv2 security.

CNA Affected

[
  {
    "vendor": "Exiv2",
    "product": "exiv2",
    "versions": [
      {
        "version": "< 0.27.5",
        "status": "affected"
      }
    ]
  }
]