CVE-2020-27844: Heap buffer overflow in OpenJPEG
A flaw was found in OpenJPEG. Specially crafted input file can lead to a heap-based buffer overflow in opjt2encodepacket function in openjp2/t2.c.
Reference: https://github.com/uclouvain/openjpeg/issues/1299
Other sources
A flaw was found in openjpeg's src/lib/openjp2/t2.c in versions prior to 2.4.0. This flaw allows an attacker to provide crafted input to openjpeg during conversion and encoding, causing an out-of-bounds write. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
— MITRE
Credit
Affected Software
Remediation
Patch Available
Patch Available
Patch Available
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2021-21159
- CVE-2021-21160
- CVE-2021-21161
- CVE-2021-21162
- CVE-2021-21163
- CVE-2021-21164
- CVE-2021-21165
- CVE-2021-21166
- CVE-2021-21167
- CVE-2021-21168
- CVE-2021-21169
- CVE-2021-21170
- CVE-2021-21171
- CVE-2021-21172
- CVE-2021-21173
- CVE-2021-21174
- CVE-2021-21175
- CVE-2021-21176
- CVE-2021-21177
- CVE-2021-21178
- CVE-2021-21179
- CVE-2021-21180
- CVE-2021-21181
- CVE-2021-21182
- CVE-2021-21183
- CVE-2021-21184
- CVE-2021-21185
- CVE-2021-21186
- CVE-2021-21187
- CVE-2021-21188
- CVE-2021-21189
- CVE-2021-21190
- CVE-2021-21200
Frequently Asked Questions
What is CVE-2020-27844?
CVE-2020-27844 is a vulnerability found in openjpeg's src/lib/openjp2/t2.c in versions prior to 2.4.0.
How does CVE-2020-27844 impact confidentiality?
CVE-2020-27844 can impact confidentiality as it allows an attacker to cause an out-of-bounds write, potentially leading to unauthorized access to sensitive information.
Is CVE-2020-27844 a high severity vulnerability?
Yes, CVE-2020-27844 has a severity rating of 7.8, which is considered high.
How can I fix CVE-2020-27844?
To fix CVE-2020-27844, update to version 2.4.0 or later of openjpeg.
Where can I find more information about CVE-2020-27844?
More information about CVE-2020-27844 can be found in the references: [GitHub Issue](https://github.com/uclouvain/openjpeg/issues/1299), [Red Hat Bugzilla](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1907698), [Red Hat Bugzilla](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1907697).