CVE-2021-26927: Null Pointer Dereference
First published: Thu Jan 28 2021(Updated: )
A flaw was found in jasper before 2.0.25. A null pointer dereference in jp2_decode in jp2_dec.c may lead to program crash and denial of service.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Jasper Project Jasper | <2.0.25 | |
| Fedoraproject Fedora | =32 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =34 | |
| redhat/jasper | <2.0.25 | 2.0.25 |
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Reference Links
- https://github.com/jasper-software/jasper/commit/41f214b121b837fa30d9ca5f2430212110f5cd9b
- https://github.com/jasper-software/jasper/issues/265
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JSXESYUHMO522Z3RHXOQ2SJNWP3XTO67/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JYVCFVTVPL66OS7LCNLUSYCMYQAVWXMM/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YRZFZSJ4UVLLMXSKHR455TAC2SD3TOHI/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1922494
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1922493
- https://github.com/jasper-software/jasper/issues/269#issuecomment-804423097
- https://access.redhat.com/errata/RHSA-2021:4235
- https://access.redhat.com/security/cve/cve-2021-26927
- https://bugzilla.redhat.com/show_bug.cgi?id=1921428
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYVCFVTVPL66OS7LCNLUSYCMYQAVWXMM/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YRZFZSJ4UVLLMXSKHR455TAC2SD3TOHI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JSXESYUHMO522Z3RHXOQ2SJNWP3XTO67/
Frequently Asked Questions
What is CVE-2021-26927?
CVE-2021-26927 is a vulnerability in jasper before version 2.0.25 that may lead to a program crash and denial of service due to a null pointer dereference.
How does CVE-2021-26927 impact the system?
CVE-2021-26927 can cause the program to crash and result in a denial of service.
What is the severity of CVE-2021-26927?
The severity of CVE-2021-26927 is medium (5.5).
Which software versions are affected by CVE-2021-26927?
Versions before 2.0.25 of jasper are affected by CVE-2021-26927.
How can CVE-2021-26927 be fixed?
To fix CVE-2021-26927, update jasper to version 2.0.25 or later.
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