CVE-2021-3443: Null Pointer Dereference
First published: Mon Mar 15 2021(Updated: )
A flaw was found in jasper before 2.0.26. A NULL pointer dereference in jp2_decode in jp2_dec.c may lead to program crash and denial of service. Reference: <a href="https://github.com/jasper-software/jasper/issues/269">https://github.com/jasper-software/jasper/issues/269</a> Upstream patch: <a href="https://github.com/jasper-software/jasper/commit/f94e7499a8b1471a4905c4f9c9e12e60fe88264b">https://github.com/jasper-software/jasper/commit/f94e7499a8b1471a4905c4f9c9e12e60fe88264b</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Jasper Project Jasper | <2.0.27 | |
| Redhat Enterprise Linux | =6.0 | |
| Redhat Enterprise Linux | =7.0 | |
| Redhat Enterprise Linux | =8.0 | |
| Fedoraproject Fedora | =33 | |
| redhat/jasper | <2.0.27 | 2.0.27 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1939233
- https://github.com/jasper-software/jasper/issues/269
- https://github.com/jasper-software/jasper/commit/f94e7499a8b1471a4905c4f9c9e12e60fe88264b
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1939240
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1939241
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1939233#c0
- https://github.com/jasper-software/jasper/issues/269#issuecomment-804423097
Frequently Asked Questions
What is CVE-2021-3443?
CVE-2021-3443 is a vulnerability found in the Jasper library, specifically versions before 2.0.27.
How does CVE-2021-3443 affect systems?
CVE-2021-3443 can cause a crash in an application that uses the Jasper library when opening a specially crafted JP2 image file.
Which software versions are affected by CVE-2021-3443?
Versions before 2.0.27 of the Jasper library are affected by CVE-2021-3443.
What is the severity of CVE-2021-3443?
CVE-2021-3443 has a severity value of 5.5, which is considered medium.
How can I fix CVE-2021-3443?
To fix CVE-2021-3443, update your Jasper library to version 2.0.27 or later.
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