UBUNTU-CVE-2026-49271

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Source

https://ubuntu.com/security/CVE-2026-49271

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49271.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-49271

Upstream

CVE-2026-49271

Downstream

USN-8479-1

Related

USN-8479-1

Published

2026-06-19T18:16:00Z

Modified

2026-06-29T23:15:15.863466646Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.1, the uncompressed HEIF decoder validates explicit icef compressed-unit offsets using unitoffset + unitsize. Because the addition can wrap, a crafted HEIF file can pass the range check and then construct a vector from iterators outside the compressed item buffer, producing an out-of-bounds heap read and crash. Version 1.22.1 patches the issue.

References

Affected packages

Ubuntu:26.04:LTS / libheif

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.21.2-3ubuntu0.2

Affected versions

1.*

1.20.2-1

1.20.2-2

1.20.2-2build1

1.20.2-2build2

1.20.2-2ubuntu1

1.21.2-1

1.21.2-3

1.21.2-3ubuntu0.1

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "heif-gdk-pixbuf",
            "binary_version": "1.21.2-3ubuntu0.2"
        },
        {
            "binary_name": "heif-thumbnailer",
            "binary_version": "1.21.2-3ubuntu0.2"
        },
        {
            "binary_version": "1.21.2-3ubuntu0.2",
            "binary_name": "heif-view"
        },
        {
            "binary_name": "libheif-examples",
            "binary_version": "1.21.2-3ubuntu0.2"
        },
        {
            "binary_name": "libheif-plugin-aomdec",
            "binary_version": "1.21.2-3ubuntu0.2"
        },
        {
            "binary_name": "libheif-plugin-aomenc",
            "binary_version": "1.21.2-3ubuntu0.2"
        },
        {
            "binary_version": "1.21.2-3ubuntu0.2",
            "binary_name": "libheif-plugin-dav1d"
        },
        {
            "binary_name": "libheif-plugin-ffmpegdec",
            "binary_version": "1.21.2-3ubuntu0.2"
        },
        {
            "binary_name": "libheif-plugin-j2kdec",
            "binary_version": "1.21.2-3ubuntu0.2"
        },
        {
            "binary_version": "1.21.2-3ubuntu0.2",
            "binary_name": "libheif-plugin-j2kenc"
        },
        {
            "binary_name": "libheif-plugin-jpegdec",
            "binary_version": "1.21.2-3ubuntu0.2"
        },
        {
            "binary_name": "libheif-plugin-jpegenc",
            "binary_version": "1.21.2-3ubuntu0.2"
        },
        {
            "binary_name": "libheif-plugin-kvazaar",
            "binary_version": "1.21.2-3ubuntu0.2"
        },
        {
            "binary_name": "libheif-plugin-libde265",
            "binary_version": "1.21.2-3ubuntu0.2"
        },
        {
            "binary_version": "1.21.2-3ubuntu0.2",
            "binary_name": "libheif-plugin-rav1e"
        },
        {
            "binary_version": "1.21.2-3ubuntu0.2",
            "binary_name": "libheif-plugin-svtenc"
        },
        {
            "binary_name": "libheif-plugin-x265",
            "binary_version": "1.21.2-3ubuntu0.2"
        },
        {
            "binary_name": "libheif-plugins-all",
            "binary_version": "1.21.2-3ubuntu0.2"
        },
        {
            "binary_version": "1.21.2-3ubuntu0.2",
            "binary_name": "libheif1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49271.json"