Out-of-bounds Write Vulnerability in MuPDF by Artifex Software
CVE-2021-37220

5.5MEDIUM

Key Information:

Vendor
Artifex
Status
MuPDF
Vendor
CVE Published:
21 July 2021

Summary

An out-of-bounds write vulnerability exists in MuPDF versions up to 1.18.1, caused by the cached color converter’s failure to properly consider the maximum key size of a hash table. This can be exploited through specifically crafted input during the 'mutool draw' operation, leading to potential data corruption or code execution in certain cases. Proper validation measures are essential to mitigate the risks associated with this vulnerability.

References

https://bugs.ghostscript.com/show_bug.cgi?id=703791
x_refsource_MISC
http://git.ghostscript.com/?p=mupdf.git%3Bh=f5712c9949d02...
x_refsource_MISC
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisoryx_refsource_FEDORA

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.