UBUNTU-CVE-2026-103531

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Source
https://ubuntu.com/security/CVE-2026-103531
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103531.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-103531
Upstream
Published
2026-10-02T00:00:00Z
Modified
2026-10-02T22:30:18Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L CVSS Calculator
  • 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw has been found in OpenSC up to 0.27.1. The impacted element is the function setcos_construct_fci_44 of the file src/libopensc/card-setcos.c. Executing a manipulation of the argument type_attr can lead to stack-based buffer overflow. The attack can be launched remotely. This patch is called ad730304052937c32b4eb489a06835ac6123632c. It is best practice to apply a patch to resolve this issue.

References

Affected packages

Ubuntu:26.04:LTS
opensc

Package

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

Affected ranges

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

Affected versions

0.*
0.26.1-3
0.26.1-3ubuntu1
0.27.0~rc1-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "opensc",
            "binary_version":  "0.27.0~rc1-1"
        },
        {
            "binary_name":  "opensc-pkcs11",
            "binary_version":  "0.27.0~rc1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103531.json"
Ubuntu:Pro:16.04:LTS
opensc

Package

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

Affected ranges

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

Affected versions

0.*
0.15.0-1ubuntu1
0.15.0-1ubuntu1+esm1
0.15.0-1ubuntu1+esm2
0.15.0-1ubuntu1+esm3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "opensc",
            "binary_version":  "0.15.0-1ubuntu1+esm3"
        },
        {
            "binary_name":  "opensc-pkcs11",
            "binary_version":  "0.15.0-1ubuntu1+esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103531.json"
Ubuntu:Pro:18.04:LTS
opensc

Package

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

Affected ranges

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

Affected versions

0.*
0.17.0-1
0.17.0-2
0.17.0-2build1
0.17.0-3
0.17.0-3ubuntu0.1~esm1
0.17.0-3ubuntu0.1~esm2
0.17.0-3ubuntu0.1~esm3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "opensc",
            "binary_version":  "0.17.0-3ubuntu0.1~esm3"
        },
        {
            "binary_name":  "opensc-pkcs11",
            "binary_version":  "0.17.0-3ubuntu0.1~esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103531.json"
Ubuntu:Pro:20.04:LTS
opensc

Package

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

Affected ranges

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

Affected versions

0.*
0.19.0-2
0.20.0-1
0.20.0-2
0.20.0-3
0.20.0-3ubuntu0.1~esm1
0.20.0-3ubuntu0.1~esm2
0.20.0-3ubuntu0.1~esm3
0.20.0-3ubuntu0.1~esm4

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "opensc",
            "binary_version":  "0.20.0-3ubuntu0.1~esm4"
        },
        {
            "binary_name":  "opensc-pkcs11",
            "binary_version":  "0.20.0-3ubuntu0.1~esm4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103531.json"
Ubuntu:Pro:22.04:LTS
opensc

Package

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

Affected ranges

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

Affected versions

0.*
0.21.0-1ubuntu1
0.22.0-1ubuntu2
0.22.0-1ubuntu2+esm1
0.22.0-1ubuntu2.1
0.22.0-1ubuntu2.1+esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "opensc",
            "binary_version":  "0.22.0-1ubuntu2.1+esm1"
        },
        {
            "binary_name":  "opensc-pkcs11",
            "binary_version":  "0.22.0-1ubuntu2.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103531.json"
Ubuntu:Pro:24.04:LTS
opensc

Package

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

Affected ranges

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

Affected versions

0.*
0.23.0-1ubuntu4
0.24.0~rc1-1
0.25.0~rc1-1
0.25.0~rc1-1build1
0.25.0~rc1-1build2
0.25.0~rc1-1ubuntu0.1~esm1
0.25.0~rc1-1ubuntu0.1
0.25.0~rc1-1ubuntu0.2
0.25.0~rc1-1ubuntu0.2+esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "opensc",
            "binary_version":  "0.25.0~rc1-1ubuntu0.2+esm1"
        },
        {
            "binary_name":  "opensc-pkcs11",
            "binary_version":  "0.25.0~rc1-1ubuntu0.2+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-103531.json"