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CVE-2021-20309

Date: May 10, 2021

A flaw was found in ImageMagick in versions before 7.0.11 and before 6.9.12, where a division by zero in WaveImage() of MagickCore/visual-effects.c may trigger undefined behavior via a crafted image file submitted to an application using ImageMagick. The highest threat from this vulnerability is to system availability.

Language: C

Severity Score

Related Resources (9)

https://security-tracker.debian.org/tracker/CVE-2021-20309
https://bugzilla.redhat.com/show_bug.cgi?id=1946722
https://security.alpinelinux.org/vuln/CVE-2021-20309
https://nvd.nist.gov/vuln/detail/CVE-2021-20309
https://lists.debian.org/debian-lts-announce/2021/06/msg00000.html
https://access.redhat.com/security/cve/CVE-2021-20309
https://lists.debian.org/debian-lts-announce/2023/05/msg00020.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-20309
https://www.mend.io/vulnerability-database/CVE-2021-20309

Severity Score

Weakness Type (CWE)

Divide By Zero

CWE-369

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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