Vulnerability Details : CVE-2021-20240

A flaw was found in gdk-pixbuf in versions before 2.42.0. An integer wraparound leading to an out of bounds write can occur when a crafted GIF image is loaded. An attacker may cause applications to crash or could potentially execute code on the victim system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Published 2021-05-28 11:15:08
Updated 2025-02-12 17:16:44
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Execute code

Products affected by CVE-2021-20240

Exploit prediction scoring system (EPSS) score for CVE-2021-20240

EPSS FAQ
0.79%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 72 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-20240

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
8.3
 HIGH AV:N/AC:M/Au:N/C:P/I:P/A:C
8.6
8.5
 NIST
8.8
 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
2.8
5.9
 NIST

CWE ids for CVE-2021-20240

  • The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.
    Assigned by: secalert@redhat.com (Primary)
  • The product writes data past the end, or before the beginning, of the intended buffer.
    Assigned by: secalert@redhat.com (Primary)

References for CVE-2021-20240

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