UBUNTU-CVE-2026-77118

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Source

https://ubuntu.com/security/CVE-2026-77118

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77118.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-77118

Upstream

CVE-2026-77118

Published

2026-08-20T13:19:00Z

Modified

2026-09-02T19:36:50Z

Severity

8.4 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

A heap out-of-bounds write exists in the Photo CD (PCD) decoder of GraphicsMagick. In DecodeImage() (coders/pcd.c), the Huffman delta loop advances its output pointer with q++ after every decoded delta and never checks it against the end of the heap-allocated luma/chroma plane buffers. The pointer is repositioned only when a sync marker introduces a new plane/row; between sync markers the run length is bounded solely by the input. A crafted PCD file that positions the pointer near the end of a plane and then supplies a long run of deltas with no intervening sync therefore walks the pointer past the end of the allocation and writes through it. Processing an untrusted PCD file — for example with gm convert or gm identify, or through any application linked against libGraphicsMagick — can corrupt heap memory beyond the buffers.

References

Affected packages

Ubuntu:26.04:LTS

graphicsmagick

Package

Name: graphicsmagick
Purl: pkg:deb/ubuntu/graphicsmagick?arch=source&distro=resolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.4+really1.3.45+hg17696-1build1

1.4+really1.3.46-2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "graphicsmagick",
            "binary_version": "1.4+really1.3.46-2"
        },
        {
            "binary_name": "libgraphics-magick-perl",
            "binary_version": "1.4+really1.3.46-2"
        },
        {
            "binary_name": "libgraphicsmagick++-q16-12t64",
            "binary_version": "1.4+really1.3.46-2"
        },
        {
            "binary_name": "libgraphicsmagick-q16-3t64",
            "binary_version": "1.4+really1.3.46-2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77118.json"

Ubuntu:Pro:14.04:LTS

graphicsmagick

Package

Name: graphicsmagick
Purl: pkg:deb/ubuntu/graphicsmagick?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.16-1.1ubuntu2

1.3.16-1.1ubuntu3

1.3.18-1ubuntu3

1.3.18-1ubuntu3.1

1.3.18-1ubuntu3.1+esm1

1.3.18-1ubuntu3.1+esm2

1.3.18-1ubuntu3.1+esm3

1.3.18-1ubuntu3.1+esm4

1.3.18-1ubuntu3.1+esm5

1.3.18-1ubuntu3.1+esm6

1.3.18-1ubuntu3.1+esm7

1.3.18-1ubuntu3.1+esm8

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "graphicsmagick",
            "binary_version": "1.3.18-1ubuntu3.1+esm8"
        },
        {
            "binary_name": "graphicsmagick-imagemagick-compat",
            "binary_version": "1.3.18-1ubuntu3.1+esm8"
        },
        {
            "binary_name": "graphicsmagick-libmagick-dev-compat",
            "binary_version": "1.3.18-1ubuntu3.1+esm8"
        },
        {
            "binary_name": "libgraphics-magick-perl",
            "binary_version": "1.3.18-1ubuntu3.1+esm8"
        },
        {
            "binary_name": "libgraphicsmagick++3",
            "binary_version": "1.3.18-1ubuntu3.1+esm8"
        },
        {
            "binary_name": "libgraphicsmagick3",
            "binary_version": "1.3.18-1ubuntu3.1+esm8"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77118.json"

Ubuntu:Pro:16.04:LTS

graphicsmagick

Package

Name: graphicsmagick
Purl: pkg:deb/ubuntu/graphicsmagick?arch=source&distro=esm-apps%2Fxenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.21-3

1.3.23-1

1.3.23-1build1

1.3.23-1ubuntu0.1

1.3.23-1ubuntu0.1+esm1

1.3.23-1ubuntu0.2

1.3.23-1ubuntu0.3

1.3.23-1ubuntu0.4

1.3.23-1ubuntu0.5

1.3.23-1ubuntu0.6

1.3.23-1ubuntu0.6+esm1

1.3.23-1ubuntu0.6+esm2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "graphicsmagick",
            "binary_version": "1.3.23-1ubuntu0.6+esm2"
        },
        {
            "binary_name": "graphicsmagick-imagemagick-compat",
            "binary_version": "1.3.23-1ubuntu0.6+esm2"
        },
        {
            "binary_name": "graphicsmagick-libmagick-dev-compat",
            "binary_version": "1.3.23-1ubuntu0.6+esm2"
        },
        {
            "binary_name": "libgraphics-magick-perl",
            "binary_version": "1.3.23-1ubuntu0.6+esm2"
        },
        {
            "binary_name": "libgraphicsmagick++-q16-12",
            "binary_version": "1.3.23-1ubuntu0.6+esm2"
        },
        {
            "binary_name": "libgraphicsmagick-q16-3",
            "binary_version": "1.3.23-1ubuntu0.6+esm2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77118.json"

Ubuntu:Pro:18.04:LTS

graphicsmagick

Package

Name: graphicsmagick
Purl: pkg:deb/ubuntu/graphicsmagick?arch=source&distro=esm-apps%2Fbionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.26-15

1.3.26-16

1.3.26-19

1.3.27-1

1.3.27-2

1.3.27-3

1.3.28-1

1.3.28-2

1.3.28-2ubuntu0.1

1.3.28-2ubuntu0.1+esm1

1.3.28-2ubuntu0.2

1.3.28-2ubuntu0.2+esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "graphicsmagick",
            "binary_version": "1.3.28-2ubuntu0.2+esm1"
        },
        {
            "binary_name": "graphicsmagick-imagemagick-compat",
            "binary_version": "1.3.28-2ubuntu0.2+esm1"
        },
        {
            "binary_name": "graphicsmagick-libmagick-dev-compat",
            "binary_version": "1.3.28-2ubuntu0.2+esm1"
        },
        {
            "binary_name": "libgraphics-magick-perl",
            "binary_version": "1.3.28-2ubuntu0.2+esm1"
        },
        {
            "binary_name": "libgraphicsmagick++-q16-12",
            "binary_version": "1.3.28-2ubuntu0.2+esm1"
        },
        {
            "binary_name": "libgraphicsmagick-q16-3",
            "binary_version": "1.3.28-2ubuntu0.2+esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77118.json"

Ubuntu:Pro:20.04:LTS

graphicsmagick

Package

Name: graphicsmagick
Purl: pkg:deb/ubuntu/graphicsmagick?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.4+really1.3.33+hg16115-1

1.4+really1.3.33+hg16115-1build1

1.4+really1.3.33+hg16117-1

1.4+really1.3.34-1

1.4+really1.3.34-2

1.4+really1.3.34+hg16181-1

1.4+really1.3.35-1

1.4+really1.3.35-1ubuntu0.1~esm1

1.4+really1.3.35-1ubuntu0.1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "graphicsmagick",
            "binary_version": "1.4+really1.3.35-1ubuntu0.1"
        },
        {
            "binary_name": "graphicsmagick-imagemagick-compat",
            "binary_version": "1.4+really1.3.35-1ubuntu0.1"
        },
        {
            "binary_name": "graphicsmagick-libmagick-dev-compat",
            "binary_version": "1.4+really1.3.35-1ubuntu0.1"
        },
        {
            "binary_name": "libgraphics-magick-perl",
            "binary_version": "1.4+really1.3.35-1ubuntu0.1"
        },
        {
            "binary_name": "libgraphicsmagick++-q16-12",
            "binary_version": "1.4+really1.3.35-1ubuntu0.1"
        },
        {
            "binary_name": "libgraphicsmagick-q16-3",
            "binary_version": "1.4+really1.3.35-1ubuntu0.1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77118.json"

Ubuntu:Pro:22.04:LTS

graphicsmagick

Package

Name: graphicsmagick
Purl: pkg:deb/ubuntu/graphicsmagick?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.4+really1.3.36+hg16481-2

1.4+really1.3.37-1

1.4+really1.3.37-1build1

1.4+really1.3.37+hg16662-1ubuntu1

1.4+really1.3.38-1

1.4+really1.3.38-1ubuntu0.1

1.4+really1.3.38-1ubuntu0.1+esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "graphicsmagick",
            "binary_version": "1.4+really1.3.38-1ubuntu0.1+esm1"
        },
        {
            "binary_name": "graphicsmagick-imagemagick-compat",
            "binary_version": "1.4+really1.3.38-1ubuntu0.1+esm1"
        },
        {
            "binary_name": "graphicsmagick-libmagick-dev-compat",
            "binary_version": "1.4+really1.3.38-1ubuntu0.1+esm1"
        },
        {
            "binary_name": "libgraphics-magick-perl",
            "binary_version": "1.4+really1.3.38-1ubuntu0.1+esm1"
        },
        {
            "binary_name": "libgraphicsmagick++-q16-12",
            "binary_version": "1.4+really1.3.38-1ubuntu0.1+esm1"
        },
        {
            "binary_name": "libgraphicsmagick-q16-3",
            "binary_version": "1.4+really1.3.38-1ubuntu0.1+esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77118.json"

Ubuntu:Pro:24.04:LTS

graphicsmagick

Package

Name: graphicsmagick
Purl: pkg:deb/ubuntu/graphicsmagick?arch=source&distro=esm-apps%2Fnoble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.4+really1.3.42-1

1.4+really1.3.42-1build1

1.4+really1.3.42-1.1build1

1.4+really1.3.42-1.1build2

1.4+really1.3.42-1.1build3

1.4+really1.3.42-1.1ubuntu0.1~esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "graphicsmagick",
            "binary_version": "1.4+really1.3.42-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "graphicsmagick-imagemagick-compat",
            "binary_version": "1.4+really1.3.42-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "graphicsmagick-libmagick-dev-compat",
            "binary_version": "1.4+really1.3.42-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libgraphics-magick-perl",
            "binary_version": "1.4+really1.3.42-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libgraphicsmagick++-q16-12t64",
            "binary_version": "1.4+really1.3.42-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libgraphicsmagick-q16-3t64",
            "binary_version": "1.4+really1.3.42-1.1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77118.json"