UBUNTU-CVE-2026-40494

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Source
https://ubuntu.com/security/CVE-2026-40494
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40494.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-40494
Upstream
  • CVE-2026-40494
Published
2026-04-18T03:16:00Z
Modified
2026-05-20T16:25:39.848630471Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. Prior to commit 45d48d1f2e8e0d73e80bc1fd5310cb57f4547302, the TGA codec's RLE decoder in tga.c has an asymmetric bounds check vulnerability. The run-packet path (line 297) correctly clamps the repeat count to the remaining buffer space, but the raw-packet path (line 305-311) has no equivalent bounds check. This allows writing up to 496 bytes of attacker-controlled data past the end of a heap buffer. Commit 45d48d1f2e8e0d73e80bc1fd5310cb57f4547302 patches the issue.

References

Affected packages

Ubuntu:24.04:LTS / sail

Package

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

Affected ranges

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

Affected versions

0.*
0.9.0+repack-1
0.9.0+repack-2
0.9.0+repack-2.1
0.9.0+repack-2.1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsail-c++0t64",
            "binary_version": "0.9.0+repack-2.1build1"
        },
        {
            "binary_name": "libsail-common0t64",
            "binary_version": "0.9.0+repack-2.1build1"
        },
        {
            "binary_name": "libsail-manip0t64",
            "binary_version": "0.9.0+repack-2.1build1"
        },
        {
            "binary_name": "libsail0t64",
            "binary_version": "0.9.0+repack-2.1build1"
        },
        {
            "binary_name": "sail-codecs",
            "binary_version": "0.9.0+repack-2.1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40494.json"

Ubuntu:25.10 / sail

Package

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

Affected ranges

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

Affected versions

0.*
0.9.7-1build1
0.9.8-1
0.9.9-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsail-c++0t64",
            "binary_version": "0.9.9-1"
        },
        {
            "binary_name": "libsail-common0t64",
            "binary_version": "0.9.9-1"
        },
        {
            "binary_name": "libsail-manip0t64",
            "binary_version": "0.9.9-1"
        },
        {
            "binary_name": "libsail0t64",
            "binary_version": "0.9.9-1"
        },
        {
            "binary_name": "sail-codecs",
            "binary_version": "0.9.9-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40494.json"

Ubuntu:26.04:LTS / sail

Package

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

Affected ranges

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

Affected versions

0.*
0.9.9-1
0.9.10-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsail-c++0t64",
            "binary_version": "0.9.10-1"
        },
        {
            "binary_name": "libsail-common0t64",
            "binary_version": "0.9.10-1"
        },
        {
            "binary_name": "libsail-manip0t64",
            "binary_version": "0.9.10-1"
        },
        {
            "binary_name": "libsail0t64",
            "binary_version": "0.9.10-1"
        },
        {
            "binary_name": "sail-codecs",
            "binary_version": "0.9.10-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40494.json"