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CVE-2021-4214

Good to know:

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Date: August 23, 2022

A heap overflow flaw was found in libpngs' pngimage.c program. This flaw allows an attacker with local network access to pass a specially crafted PNG file to the pngimage utility, causing an application to crash, leading to a denial of service.

Severity Score

Related Resources (7)

https://security.netapp.com/advisory/ntap-20221020-0001/
https://bugzilla.redhat.com/show_bug.cgi?id=2043393
https://github.com/glennrp/libpng/issues/302
https://nvd.nist.gov/vuln/detail/CVE-2021-4214
https://security-tracker.debian.org/tracker/CVE-2021-4214
https://access.redhat.com/security/cve/CVE-2021-4214
https://www.mend.io/vulnerability-database/CVE-2021-4214

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CWE-120

Top Fix

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Upgrade Version

Upgrade to version libpng - 1.6.37

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CVSS v3.1

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

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