USN-8526-2

USN-8526-1 fixed vulnerabilities in libheif. This update provides the corresponding updates for CVE-2026-47709 and CVE-2026-47714 in Ubuntu 24.04 LTS.

Original advisory details:

Junyi Liu discovered that libheif had a null pointer dereference in its image tiling interface. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-47709)

Calvin Young and Enoch Chow discovered that libheif had an integer overflow in its inline mask size calculation. An attacker could possibly use this issue to cause a denial of service or obtain sensitive information. (CVE-2026-47714)

References

Affected packages

Ubuntu:24.04:LTS / libheif

Package

Name: libheif
Purl: pkg:deb/ubuntu/libheif?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1.17.6-1ubuntu4.6

Affected versions

1.*

1.16.2-2ubuntu1

1.17.1-1ubuntu2

1.17.1-1ubuntu3

1.17.4-1ubuntu1

1.17.6-1ubuntu1

1.17.6-1ubuntu2

1.17.6-1ubuntu3

1.17.6-1ubuntu4

1.17.6-1ubuntu4.1

1.17.6-1ubuntu4.2

1.17.6-1ubuntu4.3

1.17.6-1ubuntu4.4

1.17.6-1ubuntu4.5

Ecosystem specific

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "heif-gdk-pixbuf",
            "binary_version":  "1.17.6-1ubuntu4.6"
        },
        {
            "binary_name":  "heif-thumbnailer",
            "binary_version":  "1.17.6-1ubuntu4.6"
        },
        {
            "binary_name":  "libheif-examples",
            "binary_version":  "1.17.6-1ubuntu4.6"
        },
        {
            "binary_name":  "libheif-plugin-aomdec",
            "binary_version":  "1.17.6-1ubuntu4.6"
        },
        {
            "binary_name":  "libheif-plugin-aomenc",
            "binary_version":  "1.17.6-1ubuntu4.6"
        },
        {
            "binary_name":  "libheif-plugin-dav1d",
            "binary_version":  "1.17.6-1ubuntu4.6"
        },
        {
            "binary_name":  "libheif-plugin-ffmpegdec",
            "binary_version":  "1.17.6-1ubuntu4.6"
        },
        {
            "binary_name":  "libheif-plugin-j2kdec",
            "binary_version":  "1.17.6-1ubuntu4.6"
        },
        {
            "binary_name":  "libheif-plugin-j2kenc",
            "binary_version":  "1.17.6-1ubuntu4.6"
        },
        {
            "binary_name":  "libheif-plugin-jpegdec",
            "binary_version":  "1.17.6-1ubuntu4.6"
        },
        {
            "binary_name":  "libheif-plugin-jpegenc",
            "binary_version":  "1.17.6-1ubuntu4.6"
        },
        {
            "binary_name":  "libheif-plugin-libde265",
            "binary_version":  "1.17.6-1ubuntu4.6"
        },
        {
            "binary_name":  "libheif-plugin-rav1e",
            "binary_version":  "1.17.6-1ubuntu4.6"
        },
        {
            "binary_name":  "libheif-plugin-svtenc",
            "binary_version":  "1.17.6-1ubuntu4.6"
        },
        {
            "binary_name":  "libheif-plugin-x265",
            "binary_version":  "1.17.6-1ubuntu4.6"
        },
        {
            "binary_name":  "libheif1",
            "binary_version":  "1.17.6-1ubuntu4.6"
        }
    ]
}

Database specific

cves_map

{
    "cves":  [
        {
            "id":  "CVE-2026-47709",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-47714",
            "severity":  [
                {
                    "score":  "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem":  "Ubuntu:24.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8526-2.json"