CVE-2021-4214
First published: Fri Jan 21 2022(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Libpng Libpng | =1.6.0 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
| NetApp ONTAP Select Deploy administration utility | ||
| debian/libpng1.6 | <=1.6.37-3<=1.6.39-2<=1.6.43-5 |
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Reference Links
- https://github.com/glennrp/libpng/issues/302
- https://access.redhat.com/security/cve/cve-2021-4214
- https://bugzilla.redhat.com/show_bug.cgi?id=2043393
- https://access.redhat.com/security/cve/CVE-2021-4214
- https://security-tracker.debian.org/tracker/CVE-2021-4214
- https://security.netapp.com/advisory/ntap-20221020-0001/
Frequently Asked Questions
What is CVE-2021-4214?
CVE-2021-4214 is a heap overflow vulnerability found in libpng's pngimage.c program.
What is the severity of CVE-2021-4214?
The severity of CVE-2021-4214 is medium.
How does CVE-2021-4214 affect the affected software?
CVE-2021-4214 affects libpng version 1.6.0 and Debian Linux versions 10.0 and 11.0, as well as the NetApp ONTAP Select Deploy administration utility.
How can an attacker exploit CVE-2021-4214?
An attacker with local network access can exploit CVE-2021-4214 by passing a specially crafted PNG file to the pngimage utility, causing an application to crash and leading to a denial of service.
How can I fix the CVE-2021-4214 vulnerability?
To fix the CVE-2021-4214 vulnerability, update libpng to versions 1.6.36-6, 1.6.37-3, 1.6.39-2, or 1.6.40-2, or follow the recommended updates for the affected software.
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- agent/software-canonical-lookup
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- vendor/netapp
- canonical/netapp ontap select deploy administration utility
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