USN-8709-1

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Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-8709-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8709-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8709-1
Upstream
Related
Published
2026-09-01T15:24:11Z
Modified
2026-09-02T02:41:28Z
Summary
ncurses vulnerability
Details

It was discovered that ncurses incorrectly handled specially crafted terminfo database entries. A local attacker could possibly use this issue to cause applications using ncurses to crash, resulting in a denial of service.

References

Affected packages

Ubuntu:22.04:LTS
ncurses

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.3-2ubuntu0.3

Affected versions

6.*
6.2+20201114-2build1
6.2+20201114-2build2
6.3-1
6.3-2
6.3-2ubuntu0.1
6.3-2ubuntu0.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "lib32ncurses6",
            "binary_version": "6.3-2ubuntu0.3"
        },
        {
            "binary_name": "lib32ncursesw6",
            "binary_version": "6.3-2ubuntu0.3"
        },
        {
            "binary_name": "lib32tinfo6",
            "binary_version": "6.3-2ubuntu0.3"
        },
        {
            "binary_name": "lib64ncurses6",
            "binary_version": "6.3-2ubuntu0.3"
        },
        {
            "binary_name": "lib64ncursesw6",
            "binary_version": "6.3-2ubuntu0.3"
        },
        {
            "binary_name": "lib64tinfo6",
            "binary_version": "6.3-2ubuntu0.3"
        },
        {
            "binary_name": "libncurses5",
            "binary_version": "6.3-2ubuntu0.3"
        },
        {
            "binary_name": "libncurses6",
            "binary_version": "6.3-2ubuntu0.3"
        },
        {
            "binary_name": "libncursesw5",
            "binary_version": "6.3-2ubuntu0.3"
        },
        {
            "binary_name": "libncursesw6",
            "binary_version": "6.3-2ubuntu0.3"
        },
        {
            "binary_name": "libtinfo5",
            "binary_version": "6.3-2ubuntu0.3"
        },
        {
            "binary_name": "libtinfo6",
            "binary_version": "6.3-2ubuntu0.3"
        },
        {
            "binary_name": "ncurses-base",
            "binary_version": "6.3-2ubuntu0.3"
        },
        {
            "binary_name": "ncurses-bin",
            "binary_version": "6.3-2ubuntu0.3"
        },
        {
            "binary_name": "ncurses-examples",
            "binary_version": "6.3-2ubuntu0.3"
        },
        {
            "binary_name": "ncurses-term",
            "binary_version": "6.3-2ubuntu0.3"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2025-6141",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:22.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8709-1.json"
Ubuntu:24.04:LTS
ncurses

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.4+20240113-1ubuntu2.2

Affected versions

6.*
6.4+20230625-2
6.4+20231016-1
6.4+20231121-1build1
6.4+20231209-1
6.4+20240113-1ubuntu1
6.4+20240113-1ubuntu2
6.4+20240113-1ubuntu2.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "lib32ncurses6",
            "binary_version": "6.4+20240113-1ubuntu2.2"
        },
        {
            "binary_name": "lib32ncursesw6",
            "binary_version": "6.4+20240113-1ubuntu2.2"
        },
        {
            "binary_name": "lib32tinfo6",
            "binary_version": "6.4+20240113-1ubuntu2.2"
        },
        {
            "binary_name": "lib64ncurses6",
            "binary_version": "6.4+20240113-1ubuntu2.2"
        },
        {
            "binary_name": "lib64ncursesw6",
            "binary_version": "6.4+20240113-1ubuntu2.2"
        },
        {
            "binary_name": "lib64tinfo6",
            "binary_version": "6.4+20240113-1ubuntu2.2"
        },
        {
            "binary_name": "libncurses6",
            "binary_version": "6.4+20240113-1ubuntu2.2"
        },
        {
            "binary_name": "libncursesw6",
            "binary_version": "6.4+20240113-1ubuntu2.2"
        },
        {
            "binary_name": "libtinfo6",
            "binary_version": "6.4+20240113-1ubuntu2.2"
        },
        {
            "binary_name": "ncurses-base",
            "binary_version": "6.4+20240113-1ubuntu2.2"
        },
        {
            "binary_name": "ncurses-bin",
            "binary_version": "6.4+20240113-1ubuntu2.2"
        },
        {
            "binary_name": "ncurses-examples",
            "binary_version": "6.4+20240113-1ubuntu2.2"
        },
        {
            "binary_name": "ncurses-term",
            "binary_version": "6.4+20240113-1ubuntu2.2"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2025-6141",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:24.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8709-1.json"
Ubuntu:Pro:14.04:LTS
ncurses

Package

Name
ncurses
Purl
pkg:deb/ubuntu/ncurses?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.9+20140118-1ubuntu1+esm7

Affected versions

5.*
5.9+20130608-1ubuntu1
5.9+20131221-1ubuntu1
5.9+20140118-1ubuntu1
5.9+20140118-1ubuntu1+esm1
5.9+20140118-1ubuntu1+esm2
5.9+20140118-1ubuntu1+esm3
5.9+20140118-1ubuntu1+esm4
5.9+20140118-1ubuntu1+esm5
5.9+20140118-1ubuntu1+esm6

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "lib32ncurses5",
            "binary_version": "5.9+20140118-1ubuntu1+esm7"
        },
        {
            "binary_name": "lib32ncursesw5",
            "binary_version": "5.9+20140118-1ubuntu1+esm7"
        },
        {
            "binary_name": "lib32tinfo5",
            "binary_version": "5.9+20140118-1ubuntu1+esm7"
        },
        {
            "binary_name": "lib64ncurses5",
            "binary_version": "5.9+20140118-1ubuntu1+esm7"
        },
        {
            "binary_name": "lib64tinfo5",
            "binary_version": "5.9+20140118-1ubuntu1+esm7"
        },
        {
            "binary_name": "libncurses5",
            "binary_version": "5.9+20140118-1ubuntu1+esm7"
        },
        {
            "binary_name": "libncursesw5",
            "binary_version": "5.9+20140118-1ubuntu1+esm7"
        },
        {
            "binary_name": "libtinfo5",
            "binary_version": "5.9+20140118-1ubuntu1+esm7"
        },
        {
            "binary_name": "libx32ncurses5",
            "binary_version": "5.9+20140118-1ubuntu1+esm7"
        },
        {
            "binary_name": "libx32ncursesw5",
            "binary_version": "5.9+20140118-1ubuntu1+esm7"
        },
        {
            "binary_name": "libx32tinfo5",
            "binary_version": "5.9+20140118-1ubuntu1+esm7"
        },
        {
            "binary_name": "ncurses-base",
            "binary_version": "5.9+20140118-1ubuntu1+esm7"
        },
        {
            "binary_name": "ncurses-bin",
            "binary_version": "5.9+20140118-1ubuntu1+esm7"
        },
        {
            "binary_name": "ncurses-examples",
            "binary_version": "5.9+20140118-1ubuntu1+esm7"
        },
        {
            "binary_name": "ncurses-term",
            "binary_version": "5.9+20140118-1ubuntu1+esm7"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2025-6141",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:14.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8709-1.json"
Ubuntu:Pro:16.04:LTS
ncurses

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.0+20160213-1ubuntu1+esm7

Affected versions

5.*
5.9+20150516-2ubuntu1
6.*
6.0+20151024-2ubuntu1
6.0+20151024-2ubuntu2
6.0+20160213-1ubuntu1
6.0+20160213-1ubuntu1+esm1
6.0+20160213-1ubuntu1+esm2
6.0+20160213-1ubuntu1+esm3
6.0+20160213-1ubuntu1+esm4
6.0+20160213-1ubuntu1+esm5
6.0+20160213-1ubuntu1+esm6

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "lib32ncurses5",
            "binary_version": "6.0+20160213-1ubuntu1+esm7"
        },
        {
            "binary_name": "lib32ncursesw5",
            "binary_version": "6.0+20160213-1ubuntu1+esm7"
        },
        {
            "binary_name": "lib32tinfo5",
            "binary_version": "6.0+20160213-1ubuntu1+esm7"
        },
        {
            "binary_name": "lib64ncurses5",
            "binary_version": "6.0+20160213-1ubuntu1+esm7"
        },
        {
            "binary_name": "lib64tinfo5",
            "binary_version": "6.0+20160213-1ubuntu1+esm7"
        },
        {
            "binary_name": "libncurses5",
            "binary_version": "6.0+20160213-1ubuntu1+esm7"
        },
        {
            "binary_name": "libncursesw5",
            "binary_version": "6.0+20160213-1ubuntu1+esm7"
        },
        {
            "binary_name": "libtinfo5",
            "binary_version": "6.0+20160213-1ubuntu1+esm7"
        },
        {
            "binary_name": "libx32ncurses5",
            "binary_version": "6.0+20160213-1ubuntu1+esm7"
        },
        {
            "binary_name": "libx32ncursesw5",
            "binary_version": "6.0+20160213-1ubuntu1+esm7"
        },
        {
            "binary_name": "libx32tinfo5",
            "binary_version": "6.0+20160213-1ubuntu1+esm7"
        },
        {
            "binary_name": "ncurses-base",
            "binary_version": "6.0+20160213-1ubuntu1+esm7"
        },
        {
            "binary_name": "ncurses-bin",
            "binary_version": "6.0+20160213-1ubuntu1+esm7"
        },
        {
            "binary_name": "ncurses-examples",
            "binary_version": "6.0+20160213-1ubuntu1+esm7"
        },
        {
            "binary_name": "ncurses-term",
            "binary_version": "6.0+20160213-1ubuntu1+esm7"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2025-6141",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:16.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8709-1.json"
Ubuntu:Pro:18.04:LTS
ncurses

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.1-1ubuntu1.18.04.1+esm4

Affected versions

6.*
6.0+20160625-1ubuntu1
6.0+20171125-1ubuntu1
6.1-1ubuntu1
6.1-1ubuntu1.18.04
6.1-1ubuntu1.18.04.1
6.1-1ubuntu1.18.04.1+esm1
6.1-1ubuntu1.18.04.1+esm2
6.1-1ubuntu1.18.04.1+esm3

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "lib32ncurses5",
            "binary_version": "6.1-1ubuntu1.18.04.1+esm4"
        },
        {
            "binary_name": "lib32ncursesw5",
            "binary_version": "6.1-1ubuntu1.18.04.1+esm4"
        },
        {
            "binary_name": "lib32tinfo5",
            "binary_version": "6.1-1ubuntu1.18.04.1+esm4"
        },
        {
            "binary_name": "lib64ncurses5",
            "binary_version": "6.1-1ubuntu1.18.04.1+esm4"
        },
        {
            "binary_name": "lib64tinfo5",
            "binary_version": "6.1-1ubuntu1.18.04.1+esm4"
        },
        {
            "binary_name": "libncurses5",
            "binary_version": "6.1-1ubuntu1.18.04.1+esm4"
        },
        {
            "binary_name": "libncursesw5",
            "binary_version": "6.1-1ubuntu1.18.04.1+esm4"
        },
        {
            "binary_name": "libtinfo5",
            "binary_version": "6.1-1ubuntu1.18.04.1+esm4"
        },
        {
            "binary_name": "libx32ncurses5",
            "binary_version": "6.1-1ubuntu1.18.04.1+esm4"
        },
        {
            "binary_name": "libx32ncursesw5",
            "binary_version": "6.1-1ubuntu1.18.04.1+esm4"
        },
        {
            "binary_name": "libx32tinfo5",
            "binary_version": "6.1-1ubuntu1.18.04.1+esm4"
        },
        {
            "binary_name": "ncurses-base",
            "binary_version": "6.1-1ubuntu1.18.04.1+esm4"
        },
        {
            "binary_name": "ncurses-bin",
            "binary_version": "6.1-1ubuntu1.18.04.1+esm4"
        },
        {
            "binary_name": "ncurses-examples",
            "binary_version": "6.1-1ubuntu1.18.04.1+esm4"
        },
        {
            "binary_name": "ncurses-term",
            "binary_version": "6.1-1ubuntu1.18.04.1+esm4"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2025-6141",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:18.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8709-1.json"
Ubuntu:Pro:20.04:LTS
ncurses

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
6.2-0ubuntu2.1+esm2

Affected versions

6.*
6.1+20190803-1ubuntu1
6.1+20191019-1ubuntu1
6.2-0ubuntu2
6.2-0ubuntu2.1
6.2-0ubuntu2.1+esm1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "lib32ncurses6",
            "binary_version": "6.2-0ubuntu2.1+esm2"
        },
        {
            "binary_name": "lib32ncursesw6",
            "binary_version": "6.2-0ubuntu2.1+esm2"
        },
        {
            "binary_name": "lib32tinfo6",
            "binary_version": "6.2-0ubuntu2.1+esm2"
        },
        {
            "binary_name": "lib64ncurses6",
            "binary_version": "6.2-0ubuntu2.1+esm2"
        },
        {
            "binary_name": "lib64ncursesw6",
            "binary_version": "6.2-0ubuntu2.1+esm2"
        },
        {
            "binary_name": "lib64tinfo6",
            "binary_version": "6.2-0ubuntu2.1+esm2"
        },
        {
            "binary_name": "libncurses5",
            "binary_version": "6.2-0ubuntu2.1+esm2"
        },
        {
            "binary_name": "libncurses6",
            "binary_version": "6.2-0ubuntu2.1+esm2"
        },
        {
            "binary_name": "libncursesw5",
            "binary_version": "6.2-0ubuntu2.1+esm2"
        },
        {
            "binary_name": "libncursesw6",
            "binary_version": "6.2-0ubuntu2.1+esm2"
        },
        {
            "binary_name": "libtinfo5",
            "binary_version": "6.2-0ubuntu2.1+esm2"
        },
        {
            "binary_name": "libtinfo6",
            "binary_version": "6.2-0ubuntu2.1+esm2"
        },
        {
            "binary_name": "ncurses-base",
            "binary_version": "6.2-0ubuntu2.1+esm2"
        },
        {
            "binary_name": "ncurses-bin",
            "binary_version": "6.2-0ubuntu2.1+esm2"
        },
        {
            "binary_name": "ncurses-examples",
            "binary_version": "6.2-0ubuntu2.1+esm2"
        },
        {
            "binary_name": "ncurses-term",
            "binary_version": "6.2-0ubuntu2.1+esm2"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2025-6141",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                    "type": "CVSS_V4"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:20.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8709-1.json"