UBUNTU-CVE-2026-5314

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Source
https://ubuntu.com/security/CVE-2026-5314
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5314.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-5314
Upstream
  • CVE-2026-5314
Published
2026-04-01T23:17:00Z
Modified
2026-05-26T19:29:29Z
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
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
  • 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A vulnerability was found in Nothings stb up to 1.26. Impacted is the function stbtt_InitFont_internal in the library stb_truetype.h of the component TTF File Handler. Performing a manipulation results in out-of-bounds read. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

References

Affected packages

Ubuntu:20.04:LTS / libstb

Package

Name
libstb
Purl
pkg:deb/ubuntu/libstb?arch=source&distro=focal

Affected ranges

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

Affected versions

0.*
0.0~git20190817.1.052dce1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libstb0",
            "binary_version": "0.0~git20190817.1.052dce1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5314.json"

Ubuntu:22.04:LTS / libstb

Package

Name
libstb
Purl
pkg:deb/ubuntu/libstb?arch=source&distro=jammy

Affected ranges

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

Affected versions

0.*
0.0~git20200713.b42009b+ds-1
0.0~git20210910.af1a5bc+ds-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libstb0",
            "binary_version": "0.0~git20210910.af1a5bc+ds-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5314.json"

Ubuntu:24.04:LTS / libstb

Package

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

Affected ranges

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

Affected versions

0.*
0.0~git20230129.5736b15+ds-1
0.0~git20230129.5736b15+ds-1.1
0.0~git20230129.5736b15+ds-1.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libstb0t64",
            "binary_version": "0.0~git20230129.5736b15+ds-1.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5314.json"

Ubuntu:25.10 / libstb

Package

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

Affected ranges

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

Affected versions

0.*
0.0~git20240715.f7f20f39fe4f+ds-1
0.0~git20241109.5c20573+ds-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libstb0t64",
            "binary_version": "0.0~git20241109.5c20573+ds-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5314.json"

Ubuntu:26.04:LTS / libstb

Package

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

Affected ranges

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

Affected versions

0.*
0.0~git20241109.5c20573+ds-1
0.0~git20250907.fede005+ds-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libstb0t64",
            "binary_version": "0.0~git20250907.fede005+ds-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5314.json"