CVE-2020-12268
jbig2dec: heap-based buffer overflow in jbig2_image_compose in jbig2_image.c
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · January 27, 2020
Updated · June 27, 2026
Description
An integer overflow was found in jbig2dec, which causes an out-of-bounds read/write in the jbig2_image_compose function. This flaw could potentially result in the execution of code on the system. Applications that use jbig2dec with untrusted input may be vulnerable to this flaw. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-190 · Integer Overflow or Wraparound