CVE-2021-3596: Null Pointer Dereference
First published: Thu Jun 10 2021(Updated: )
A NULL pointer dereference flaw was found in ImageMagick in versions prior to 7.0.10-31 in ReadSVGImage() in coders/svg.c. This issue is due to not checking the return value from libxml2's xmlCreatePushParserCtxt() and uses the value directly, which leads to a crash and segmentation fault.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ImageMagick ImageMagick | <7.0.10-31 | |
| Redhat Enterprise Linux | =5.0 | |
| Redhat Enterprise Linux | =6.0 | |
| Redhat Enterprise Linux | =7.0 | |
| Fedoraproject Fedora | =34 | |
| Debian Debian Linux | =9.0 | |
| redhat/ImageMagick 7.0.10 | <31 | 31 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1970569
- https://github.com/ImageMagick/ImageMagick/issues/2624
- https://lists.debian.org/debian-lts-announce/2022/05/msg00018.html
- https://lists.debian.org/debian-lts-announce/2023/03/msg00008.html
- https://github.com/ImageMagick/ImageMagick/commit/43dfb1894761c4929d5d5c98dc80ba4e59a0d114
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1970570
- https://access.redhat.com/security/cve/cve-2021-3596
Frequently Asked Questions
What is CVE-2021-3596?
CVE-2021-3596 is a vulnerability in ImageMagick that allows for a NULL pointer dereference, leading to a crash and segmentation fault.
Which versions of ImageMagick are affected by CVE-2021-3596?
Versions prior to 7.0.10-31 of ImageMagick are affected by CVE-2021-3596.
What is the severity of CVE-2021-3596?
CVE-2021-3596 has a severity rating of 6.5, which is considered medium severity.
How can I fix CVE-2021-3596 in ImageMagick?
To fix CVE-2021-3596, you should update ImageMagick to version 7.0.10-31 or later.
Where can I find more information about CVE-2021-3596?
You can find more information about CVE-2021-3596 in the following references: [Bugzilla Red Hat](https://bugzilla.redhat.com/show_bug.cgi?id=1970569), [GitHub ImageMagick Issues](https://github.com/ImageMagick/ImageMagick/issues/2624), and [Debian LTS Announce](https://lists.debian.org/debian-lts-announce/2022/05/msg00018.html).
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