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

5.5 Medium

CVSS3

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

6.4 Medium

AI Score

Confidence

High

0.001 Low

EPSS

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"
      }
    ]
  }
]