UBUNTU-CVE-2026-49337

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Source
https://ubuntu.com/security/CVE-2026-49337
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49337.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-49337
Upstream
Downstream
Related
Published
2026-06-19T21:17:00Z
Modified
2026-07-21T13:09:21Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.20, a crafted sequence of H.265 NAL units causes decoder_context::read_slice_NAL() (libde265/decctx.cc:481) to attach slice headers to a finished picture object that has no active image unit, resulting in attacker-controlled unbounded heap growth. The retained headers are never freed until the picture is released, which may not happen during continuous streaming. Version 1.0.20 patches the issue.

References

Affected packages

Ubuntu:24.04:LTS
libde265

Package

Name
libde265
Purl
pkg:deb/ubuntu/libde265?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.0.15-1ubuntu0.1

Affected versions

1.*
1.0.12-2
1.0.13-1
1.0.15-1
1.0.15-1build1
1.0.15-1build2
1.0.15-1build3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libde265-0",
            "binary_version": "1.0.15-1ubuntu0.1"
        },
        {
            "binary_name": "libde265-examples",
            "binary_version": "1.0.15-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49337.json"
Ubuntu:25.10
libde265

Package

Name
libde265
Purl
pkg:deb/ubuntu/libde265?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.0.15-1build5
1.0.16-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libde265-0",
            "binary_version": "1.0.16-1"
        },
        {
            "binary_name": "libde265-examples",
            "binary_version": "1.0.16-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49337.json"
Ubuntu:Pro:16.04:LTS
libde265

Package

Name
libde265
Purl
pkg:deb/ubuntu/libde265?arch=source&distro=esm-apps-legacy%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.0.2-2ubuntu0.16.04.1~esm6

Affected versions

1.*
1.0.2-1build1
1.0.2-2
1.0.2-2ubuntu0.16.04.1~esm1
1.0.2-2ubuntu0.16.04.1~esm2
1.0.2-2ubuntu0.16.04.1~esm3
1.0.2-2ubuntu0.16.04.1~esm4
1.0.2-2ubuntu0.16.04.1~esm5

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libde265-0",
            "binary_version": "1.0.2-2ubuntu0.16.04.1~esm6"
        },
        {
            "binary_name": "libde265-examples",
            "binary_version": "1.0.2-2ubuntu0.16.04.1~esm6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49337.json"
Ubuntu:Pro:18.04:LTS
libde265

Package

Name
libde265
Purl
pkg:deb/ubuntu/libde265?arch=source&distro=esm-apps%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.0.2-2ubuntu0.18.04.1~esm6

Affected versions

1.*
1.0.2-2build1
1.0.2-2ubuntu0.18.04.1~esm1
1.0.2-2ubuntu0.18.04.1~esm2
1.0.2-2ubuntu0.18.04.1~esm3
1.0.2-2ubuntu0.18.04.1~esm4
1.0.2-2ubuntu0.18.04.1~esm5

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libde265-0",
            "binary_version": "1.0.2-2ubuntu0.18.04.1~esm6"
        },
        {
            "binary_name": "libde265-examples",
            "binary_version": "1.0.2-2ubuntu0.18.04.1~esm6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49337.json"
Ubuntu:Pro:20.04:LTS
libde265

Package

Name
libde265
Purl
pkg:deb/ubuntu/libde265?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.0.4-1ubuntu0.4+esm2

Affected versions

1.*
1.0.3-1build1
1.0.4-1
1.0.4-1build1
1.0.4-1ubuntu0.1
1.0.4-1ubuntu0.2
1.0.4-1ubuntu0.3
1.0.4-1ubuntu0.4
1.0.4-1ubuntu0.4+esm1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libde265-0",
            "binary_version": "1.0.4-1ubuntu0.4+esm2"
        },
        {
            "binary_name": "libde265-examples",
            "binary_version": "1.0.4-1ubuntu0.4+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49337.json"
Ubuntu:Pro:22.04:LTS
libde265

Package

Name
libde265
Purl
pkg:deb/ubuntu/libde265?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.0.8-1ubuntu0.3+esm2

Affected versions

1.*
1.0.8-1
1.0.8-1ubuntu0.1
1.0.8-1ubuntu0.2
1.0.8-1ubuntu0.3
1.0.8-1ubuntu0.3+esm1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libde265-0",
            "binary_version": "1.0.8-1ubuntu0.3+esm2"
        },
        {
            "binary_name": "libde265-examples",
            "binary_version": "1.0.8-1ubuntu0.3+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49337.json"
Ubuntu:Pro:26.04:LTS
libde265

Package

Name
libde265
Purl
pkg:deb/ubuntu/libde265?arch=source&distro=esm-apps%2Fresolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.0.16-1ubuntu0.1~esm1

Affected versions

1.*
1.0.16-1
1.0.16-1build1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libde265-0",
            "binary_version": "1.0.16-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libde265-examples",
            "binary_version": "1.0.16-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49337.json"