4.3

CVE-2020-27771

Exploit

In RestoreMSCWarning() of /coders/pdf.c there are several areas where calls to GetPixelIndex() could result in values outside the range of representable for the unsigned char type. The patch casts the return value of GetPixelIndex() to ssize_t type to avoid this bug. This undefined behavior could be triggered when ImageMagick processes a crafted pdf file. Red Hat Product Security marked this as Low severity because although it could potentially lead to an impact to application availability, no specific impact was demonstrated in this case. This flaw affects ImageMagick versions prior to 7.0.9-0.

Data is provided by the National Vulnerability Database (NVD)
Imagemagick ≫ Imagemagick Version < 6.9.10-69
Imagemagick ≫ Imagemagick Version >= 7.0.0-0 < 7.0.9
Redhat ≫ Enterprise Linux Version5.0
Redhat ≫ Enterprise Linux Version6.0
Redhat ≫ Enterprise Linux Version7.0
Debian ≫ Debian Linux Version9.0
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.07% 0.189
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 3.3 1.8 1.4
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
nvd@nist.gov 4.3 8.6 2.9
AV:N/AC:M/Au:N/C:N/I:N/A:P
CWE-190 Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

https://bugzilla.redhat.com/show_bug.cgi?id=1898290
Patch
Third Party Advisory
Exploit
Issue Tracking