Divide-By-Zero

2024-01-2505:57:02

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

libmupdf.so

divide-by-zero

vulnerability

fz_new_pixmap_from_float_data

pixmap.c

denial of service

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

6.7

Confidence

High

EPSS

0.001

Percentile

19.2%

JSON

libmupdf.so is vulnerable to Divide-By-Zero. The vulnerability is due fz_new_pixmap_from_float_data function within pixmap.c trying to attempts to perform a division operation where the divisor is zero, an operation that is mathematically undefined and can potentially lead to Denial of Service.

References

cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=f1b5f87edd2675d5c79301e4ef2e1139f67f904b

bugs.ghostscript.com/show_bug.cgi?id=707620

github.com/dongyuma/sox-defects/blob/main/mupdf-defects.md

github.com/dongyuma/sox-defects/blob/main/mupdf-defects.md#2-a-floating-point-exception-divide-by-zero-issue-was-discovered-in-mupdf-in-functon-fz_new_pixmap_from_float_data-of-pixmapc-in-line-1330