CVE-2020-27824: Buffer Overflow
First published: Tue Dec 08 2020(Updated: )
A flaw was found in OpenJPEG’s encoder in the opj_dwt_calc_explicit_stepsizes() function. This flaw allows an attacker who can supply crafted input to decomposition levels to cause a buffer overflow. The highest threat from this vulnerability is to system availability.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Uclouvain Openjpeg | <2.4.0 | |
| Redhat Enterprise Linux | =8.0 | |
| Fedoraproject Fedora | =32 | |
| Fedoraproject Fedora | =33 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| redhat/openjpeg | <2.4.0 | 2.4.0 |
| debian/openjpeg2 | 2.4.0-3 2.5.0-2 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1905723
- https://lists.debian.org/debian-lts-announce/2021/02/msg00011.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OQR4EWRFFZQDMFPZKFZ6I3USLMW6TKTP/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WJUPGIZE6A4O52EBOF75MCXJOL6MUCRV/
- https://www.debian.org/security/2021/dsa-4882
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://launchpad.net/bugs/cve/CVE-2020-27824
- https://github.com/uclouvain/openjpeg/issues/1286
- https://github.com/uclouvain/openjpeg/pull/1292/commits/6daf5f3e1ec6eff03b7982889874a3de6617db8d
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1905724
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1905726
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1905725
- https://access.redhat.com/errata/RHSA-2021:4251
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OQR4EWRFFZQDMFPZKFZ6I3USLMW6TKTP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJUPGIZE6A4O52EBOF75MCXJOL6MUCRV/
- https://github.com/uclouvain/openjpeg/commit/6daf5f3e1ec6eff03b7982889874a3de6617db8d
- https://security-tracker.debian.org/tracker/CVE-2020-27824
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27824
- https://nvd.nist.gov/vuln/detail/CVE-2020-27824
- https://ubuntu.com/security/CVE-2020-27824
Frequently Asked Questions
What is CVE-2020-27824?
CVE-2020-27824 is a vulnerability found in OpenJPEG's encoder that allows an attacker to cause a buffer overflow by supplying crafted input to decomposition levels.
What is the highest threat from CVE-2020-27824?
The highest threat from CVE-2020-27824 is to system availability.
What is the severity level of CVE-2020-27824?
CVE-2020-27824 has a severity level of medium with a CVSS score of 5.5.
Which software versions are affected by CVE-2020-27824?
OpenJPEG versions 2.3.1-1ubuntu5, 2.3.0-2+, and 2.4.0 are affected by CVE-2020-27824.
Are there any references for CVE-2020-27824?
Yes, you can find references for CVE-2020-27824 at the following links: [link1], [link2].
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