MGASA-2020-0464

Advisory lineage Upstream: 3 Downstream: 0
Published: 20 Dec 2020, 14:43
Last modified:16 Apr 2026, 04:25

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

20 Dec 2020, 14:43
Published
Vulnerability first disclosed
16 Apr 2026, 04:25
Last Modified
Vulnerability information updated

Description

Updated openjpeg2 packages fix security vulnerabilities A heap-buffer overwrites error was discovered in lib/openjp2/mqc.c in OpenJPEG 2.3.1. The vulnerability causes an out-of-bounds write, which may lead to remote denial of service or possibly remote code execution (CVE-2020-27814). A flaw was found in OpenJPEG’s encoder. This flaw allows an attacker to pass specially crafted x,y offset input to OpenJPEG to use during encoding. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability (CVE-2020-27823). There is a flaw in openjpeg's encoder in the opj_dwt_calc_explicit_stepsizes() function. An attacker who is able to supply crafted input to decomposition levels could cause a buffer overflow, potentially causing an impact to application availability (CVE-2020-27824).

Affected Systems

  • mageia•openjpeg2

    < 2.3.1-1.5.mga7

References (4)