Bug 2043393 (CVE-2021-4214) - CVE-2021-4214 libpng: hardcoded value leads to heap-overflow
Summary: CVE-2021-4214 libpng: hardcoded value leads to heap-overflow
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2021-4214
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 2043394
TreeView+ depends on / blocked
 
Reported: 2022-01-21 07:24 UTC by Dhananjay Arunesh
Modified: 2022-01-27 09:00 UTC (History)
12 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
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.
Clone Of:
Environment:
Last Closed: 2022-01-27 09:00:54 UTC
Embargoed:

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Description Dhananjay Arunesh 2022-01-21 07:24:57 UTC 
A vulnerability was reported in Libpng where the input buffer might not have the same length as the pre-defined value hardcoded in the pngimage so that the index is out of bound in the later loop.

References:
https://github.com/glennrp/libpng/issues/302
Comment 3 Product Security DevOps Team 2022-01-27 09:00:51 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-4214
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