UBUNTU-CVE-2020-27771

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Source
https://ubuntu.com/security/CVE-2020-27771
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-27771.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-27771
Upstream
Downstream
Related
Published
2020-12-04T15:15:00Z
Modified
2025-09-08T16:46:27Z
Severity
  • 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:Pro:16.04:LTS / imagemagick

Package

Name
imagemagick
Purl
pkg:deb/ubuntu/imagemagick@8:6.8.9.9-7ubuntu5.16+esm11?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8:6.8.9.9-7ubuntu5.16+esm11

Affected versions

8:6.*

8:6.8.9.9-5ubuntu2
8:6.8.9.9-6
8:6.8.9.9-6build1
8:6.8.9.9-7
8:6.8.9.9-7ubuntu1
8:6.8.9.9-7ubuntu2
8:6.8.9.9-7ubuntu3
8:6.8.9.9-7ubuntu4
8:6.8.9.9-7ubuntu5
8:6.8.9.9-7ubuntu5.1
8:6.8.9.9-7ubuntu5.2
8:6.8.9.9-7ubuntu5.3
8:6.8.9.9-7ubuntu5.4
8:6.8.9.9-7ubuntu5.5
8:6.8.9.9-7ubuntu5.6
8:6.8.9.9-7ubuntu5.7
8:6.8.9.9-7ubuntu5.8
8:6.8.9.9-7ubuntu5.9
8:6.8.9.9-7ubuntu5.11
8:6.8.9.9-7ubuntu5.12
8:6.8.9.9-7ubuntu5.13
8:6.8.9.9-7ubuntu5.14
8:6.8.9.9-7ubuntu5.15
8:6.8.9.9-7ubuntu5.16
8:6.8.9.9-7ubuntu5.16+esm1
8:6.8.9.9-7ubuntu5.16+esm2
8:6.8.9.9-7ubuntu5.16+esm3
8:6.8.9.9-7ubuntu5.16+esm4
8:6.8.9.9-7ubuntu5.16+esm5
8:6.8.9.9-7ubuntu5.16+esm6
8:6.8.9.9-7ubuntu5.16+esm7
8:6.8.9.9-7ubuntu5.16+esm8
8:6.8.9.9-7ubuntu5.16+esm9
8:6.8.9.9-7ubuntu5.16+esm10

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "imagemagick",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "imagemagick-6.q16",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "imagemagick-common",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "libimage-magick-perl",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "libimage-magick-q16-perl",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "libmagick++-6-headers",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "libmagick++-6.q16-5v5",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "libmagick++-6.q16-dev",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "libmagick++-dev",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "libmagickcore-6-arch-config",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "libmagickcore-6-headers",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "libmagickcore-6.q16-2",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "libmagickcore-6.q16-2-extra",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "libmagickcore-6.q16-dev",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "libmagickcore-dev",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "libmagickwand-6-headers",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "libmagickwand-6.q16-2",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "libmagickwand-6.q16-dev",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "libmagickwand-dev",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        },
        {
            "binary_name": "perlmagick",
            "binary_version": "8:6.8.9.9-7ubuntu5.16+esm11"
        }
    ]
}

Ubuntu:18.04:LTS / imagemagick

Package

Name
imagemagick
Purl
pkg:deb/ubuntu/imagemagick@8:6.9.7.4+dfsg-16ubuntu6.11?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8:6.9.7.4+dfsg-16ubuntu6.11

Affected versions

8:6.*

8:6.9.7.4+dfsg-16ubuntu2
8:6.9.7.4+dfsg-16ubuntu3
8:6.9.7.4+dfsg-16ubuntu4
8:6.9.7.4+dfsg-16ubuntu5
8:6.9.7.4+dfsg-16ubuntu6
8:6.9.7.4+dfsg-16ubuntu6.2
8:6.9.7.4+dfsg-16ubuntu6.3
8:6.9.7.4+dfsg-16ubuntu6.4
8:6.9.7.4+dfsg-16ubuntu6.7
8:6.9.7.4+dfsg-16ubuntu6.8
8:6.9.7.4+dfsg-16ubuntu6.9

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "imagemagick",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "imagemagick-6-common",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "imagemagick-6.q16",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "imagemagick-6.q16hdri",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "imagemagick-common",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libimage-magick-perl",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libimage-magick-q16-perl",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libimage-magick-q16hdri-perl",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagick++-6-headers",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagick++-6.q16-7",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagick++-6.q16-dev",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagick++-6.q16hdri-7",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagick++-6.q16hdri-dev",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagick++-dev",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagickcore-6-arch-config",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagickcore-6-headers",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagickcore-6.q16-3",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagickcore-6.q16-3-extra",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagickcore-6.q16-dev",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagickcore-6.q16hdri-3",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagickcore-6.q16hdri-3-extra",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagickcore-6.q16hdri-dev",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagickcore-dev",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagickwand-6-headers",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagickwand-6.q16-3",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagickwand-6.q16-dev",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagickwand-6.q16hdri-3",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagickwand-6.q16hdri-dev",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "libmagickwand-dev",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        },
        {
            "binary_name": "perlmagick",
            "binary_version": "8:6.9.7.4+dfsg-16ubuntu6.11"
        }
    ]
}

Ubuntu:20.04:LTS / imagemagick

Package

Name
imagemagick
Purl
pkg:deb/ubuntu/imagemagick@8:6.9.10.23+dfsg-2.1ubuntu11.4?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8:6.9.10.23+dfsg-2.1ubuntu11.4

Affected versions

8:6.*

8:6.9.10.23+dfsg-2.1ubuntu3
8:6.9.10.23+dfsg-2.1ubuntu8
8:6.9.10.23+dfsg-2.1ubuntu9
8:6.9.10.23+dfsg-2.1ubuntu10
8:6.9.10.23+dfsg-2.1ubuntu11
8:6.9.10.23+dfsg-2.1ubuntu11.1
8:6.9.10.23+dfsg-2.1ubuntu11.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "imagemagick",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "imagemagick-6-common",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "imagemagick-6.q16",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "imagemagick-6.q16hdri",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "imagemagick-common",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libimage-magick-perl",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libimage-magick-q16-perl",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libimage-magick-q16hdri-perl",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagick++-6-headers",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagick++-6.q16-8",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagick++-6.q16-dev",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagick++-6.q16hdri-8",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagick++-6.q16hdri-dev",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagick++-dev",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagickcore-6-arch-config",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagickcore-6-headers",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagickcore-6.q16-6",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagickcore-6.q16-6-extra",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagickcore-6.q16-dev",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagickcore-6.q16hdri-6",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagickcore-6.q16hdri-6-extra",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagickcore-6.q16hdri-dev",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagickcore-dev",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagickwand-6-headers",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagickwand-6.q16-6",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagickwand-6.q16-dev",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagickwand-6.q16hdri-6",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagickwand-6.q16hdri-dev",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "libmagickwand-dev",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        },
        {
            "binary_name": "perlmagick",
            "binary_version": "8:6.9.10.23+dfsg-2.1ubuntu11.4"
        }
    ]
}