UBUNTU-CVE-2026-97399

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Source
https://ubuntu.com/security/CVE-2026-97399
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-97399.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-97399
Upstream
  • CVE-2026-97399
Published
2026-09-29T00:00:00Z
Modified
2026-09-29T23:42:33Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The strncasecmp function in the GNU C Library 2.24 and later optimized for the Power8 architecture may read one byte beyond the input size limit, which may crash a program when that byte is not readable. This condition may happen when the input strings to the strncasecmp function are attacker controlled in an application and they match all the way up to the edge of their page and the neighbouring page is either not mapped or is not readable.

References

Affected packages

Ubuntu:22.04:LTS
glibc

Package

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

Affected ranges

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

Affected versions

2.*
2.34-0ubuntu3
2.35-0ubuntu1
2.35-0ubuntu3
2.35-0ubuntu3.1
2.35-0ubuntu3.3
2.35-0ubuntu3.4
2.35-0ubuntu3.5
2.35-0ubuntu3.6
2.35-0ubuntu3.7
2.35-0ubuntu3.8
2.35-0ubuntu3.9
2.35-0ubuntu3.10
2.35-0ubuntu3.11
2.35-0ubuntu3.12
2.35-0ubuntu3.13
2.35-0ubuntu3.14
2.35-0ubuntu3.15

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "glibc-source",
            "binary_version":  "2.35-0ubuntu3.15"
        },
        {
            "binary_name":  "libc-bin",
            "binary_version":  "2.35-0ubuntu3.15"
        },
        {
            "binary_name":  "libc-dev-bin",
            "binary_version":  "2.35-0ubuntu3.15"
        },
        {
            "binary_name":  "libc-devtools",
            "binary_version":  "2.35-0ubuntu3.15"
        },
        {
            "binary_name":  "libc6",
            "binary_version":  "2.35-0ubuntu3.15"
        },
        {
            "binary_name":  "libc6-amd64",
            "binary_version":  "2.35-0ubuntu3.15"
        },
        {
            "binary_name":  "libc6-dev-amd64",
            "binary_version":  "2.35-0ubuntu3.15"
        },
        {
            "binary_name":  "libc6-dev-i386",
            "binary_version":  "2.35-0ubuntu3.15"
        },
        {
            "binary_name":  "libc6-dev-s390",
            "binary_version":  "2.35-0ubuntu3.15"
        },
        {
            "binary_name":  "libc6-dev-x32",
            "binary_version":  "2.35-0ubuntu3.15"
        },
        {
            "binary_name":  "libc6-i386",
            "binary_version":  "2.35-0ubuntu3.15"
        },
        {
            "binary_name":  "libc6-prof",
            "binary_version":  "2.35-0ubuntu3.15"
        },
        {
            "binary_name":  "libc6-s390",
            "binary_version":  "2.35-0ubuntu3.15"
        },
        {
            "binary_name":  "libc6-x32",
            "binary_version":  "2.35-0ubuntu3.15"
        },
        {
            "binary_name":  "locales",
            "binary_version":  "2.35-0ubuntu3.15"
        },
        {
            "binary_name":  "locales-all",
            "binary_version":  "2.35-0ubuntu3.15"
        },
        {
            "binary_name":  "nscd",
            "binary_version":  "2.35-0ubuntu3.15"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-97399.json"
Ubuntu:24.04:LTS
glibc

Package

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

Affected ranges

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

Affected versions

2.*
2.38-1ubuntu6
2.38-3ubuntu1
2.39-0ubuntu1
2.39-0ubuntu2
2.39-0ubuntu6
2.39-0ubuntu8
2.39-0ubuntu8.1
2.39-0ubuntu8.2
2.39-0ubuntu8.3
2.39-0ubuntu8.4
2.39-0ubuntu8.5
2.39-0ubuntu8.6
2.39-0ubuntu8.7
2.39-0ubuntu8.8
2.39-0ubuntu8.9

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "glibc-source",
            "binary_version":  "2.39-0ubuntu8.9"
        },
        {
            "binary_name":  "libc-bin",
            "binary_version":  "2.39-0ubuntu8.9"
        },
        {
            "binary_name":  "libc-dev-bin",
            "binary_version":  "2.39-0ubuntu8.9"
        },
        {
            "binary_name":  "libc-devtools",
            "binary_version":  "2.39-0ubuntu8.9"
        },
        {
            "binary_name":  "libc6",
            "binary_version":  "2.39-0ubuntu8.9"
        },
        {
            "binary_name":  "libc6-amd64",
            "binary_version":  "2.39-0ubuntu8.9"
        },
        {
            "binary_name":  "libc6-dev-amd64",
            "binary_version":  "2.39-0ubuntu8.9"
        },
        {
            "binary_name":  "libc6-dev-i386",
            "binary_version":  "2.39-0ubuntu8.9"
        },
        {
            "binary_name":  "libc6-dev-s390",
            "binary_version":  "2.39-0ubuntu8.9"
        },
        {
            "binary_name":  "libc6-dev-x32",
            "binary_version":  "2.39-0ubuntu8.9"
        },
        {
            "binary_name":  "libc6-i386",
            "binary_version":  "2.39-0ubuntu8.9"
        },
        {
            "binary_name":  "libc6-s390",
            "binary_version":  "2.39-0ubuntu8.9"
        },
        {
            "binary_name":  "libc6-x32",
            "binary_version":  "2.39-0ubuntu8.9"
        },
        {
            "binary_name":  "locales",
            "binary_version":  "2.39-0ubuntu8.9"
        },
        {
            "binary_name":  "locales-all",
            "binary_version":  "2.39-0ubuntu8.9"
        },
        {
            "binary_name":  "nscd",
            "binary_version":  "2.39-0ubuntu8.9"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-97399.json"
Ubuntu:26.04:LTS
glibc

Package

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

Affected ranges

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

Affected versions

2.*
2.42-0ubuntu3
2.42-2ubuntu1
2.42-2ubuntu2
2.42-2ubuntu4
2.42-2ubuntu5
2.43-2ubuntu1
2.43-2ubuntu2
2.43-2ubuntu2.3
2.43-2ubuntu2.4

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "glibc-source",
            "binary_version":  "2.43-2ubuntu2.4"
        },
        {
            "binary_name":  "libc-bin",
            "binary_version":  "2.43-2ubuntu2.4"
        },
        {
            "binary_name":  "libc-dev-bin",
            "binary_version":  "2.43-2ubuntu2.4"
        },
        {
            "binary_name":  "libc-devtools",
            "binary_version":  "2.43-2ubuntu2.4"
        },
        {
            "binary_name":  "libc-gconv-modules-extra",
            "binary_version":  "2.43-2ubuntu2.4"
        },
        {
            "binary_name":  "libc6",
            "binary_version":  "2.43-2ubuntu2.4"
        },
        {
            "binary_name":  "libc6-amd64",
            "binary_version":  "2.43-2ubuntu2.4"
        },
        {
            "binary_name":  "libc6-dev-amd64",
            "binary_version":  "2.43-2ubuntu2.4"
        },
        {
            "binary_name":  "libc6-dev-i386",
            "binary_version":  "2.43-2ubuntu2.4"
        },
        {
            "binary_name":  "libc6-dev-x32",
            "binary_version":  "2.43-2ubuntu2.4"
        },
        {
            "binary_name":  "libc6-i386",
            "binary_version":  "2.43-2ubuntu2.4"
        },
        {
            "binary_name":  "libc6-x32",
            "binary_version":  "2.43-2ubuntu2.4"
        },
        {
            "binary_name":  "locales",
            "binary_version":  "2.43-2ubuntu2.4"
        },
        {
            "binary_name":  "locales-all",
            "binary_version":  "2.43-2ubuntu2.4"
        },
        {
            "binary_name":  "nscd",
            "binary_version":  "2.43-2ubuntu2.4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-97399.json"
Ubuntu:Pro:14.04:LTS
eglibc

Package

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

Affected ranges

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

Affected versions

2.*
2.17-93ubuntu4
2.18-0ubuntu1
2.18-0ubuntu2
2.18-0ubuntu4
2.18-0ubuntu5
2.18-0ubuntu6
2.18-0ubuntu7
2.19-0ubuntu2
2.19-0ubuntu3
2.19-0ubuntu4
2.19-0ubuntu5
2.19-0ubuntu6
2.19-0ubuntu6.1
2.19-0ubuntu6.3
2.19-0ubuntu6.4
2.19-0ubuntu6.5
2.19-0ubuntu6.6
2.19-0ubuntu6.7
2.19-0ubuntu6.8
2.19-0ubuntu6.9
2.19-0ubuntu6.10
2.19-0ubuntu6.11
2.19-0ubuntu6.13
2.19-0ubuntu6.14
2.19-0ubuntu6.15
2.19-0ubuntu6.15+esm1
2.19-0ubuntu6.15+esm2
2.19-0ubuntu6.15+esm3
2.19-0ubuntu6.15+esm4

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "eglibc-source",
            "binary_version":  "2.19-0ubuntu6.15+esm4"
        },
        {
            "binary_name":  "libc-bin",
            "binary_version":  "2.19-0ubuntu6.15+esm4"
        },
        {
            "binary_name":  "libc-dev-bin",
            "binary_version":  "2.19-0ubuntu6.15+esm4"
        },
        {
            "binary_name":  "libc6",
            "binary_version":  "2.19-0ubuntu6.15+esm4"
        },
        {
            "binary_name":  "libc6-amd64",
            "binary_version":  "2.19-0ubuntu6.15+esm4"
        },
        {
            "binary_name":  "libc6-armel",
            "binary_version":  "2.19-0ubuntu6.15+esm4"
        },
        {
            "binary_name":  "libc6-dev-amd64",
            "binary_version":  "2.19-0ubuntu6.15+esm4"
        },
        {
            "binary_name":  "libc6-dev-armel",
            "binary_version":  "2.19-0ubuntu6.15+esm4"
        },
        {
            "binary_name":  "libc6-dev-i386",
            "binary_version":  "2.19-0ubuntu6.15+esm4"
        },
        {
            "binary_name":  "libc6-dev-x32",
            "binary_version":  "2.19-0ubuntu6.15+esm4"
        },
        {
            "binary_name":  "libc6-i386",
            "binary_version":  "2.19-0ubuntu6.15+esm4"
        },
        {
            "binary_name":  "libc6-pic",
            "binary_version":  "2.19-0ubuntu6.15+esm4"
        },
        {
            "binary_name":  "libc6-prof",
            "binary_version":  "2.19-0ubuntu6.15+esm4"
        },
        {
            "binary_name":  "libc6-x32",
            "binary_version":  "2.19-0ubuntu6.15+esm4"
        },
        {
            "binary_name":  "multiarch-support",
            "binary_version":  "2.19-0ubuntu6.15+esm4"
        },
        {
            "binary_name":  "nscd",
            "binary_version":  "2.19-0ubuntu6.15+esm4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-97399.json"
Ubuntu:Pro:16.04:LTS
glibc

Package

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

Affected ranges

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

Affected versions

2.*
2.21-0ubuntu4
2.21-0ubuntu5
2.21-0ubuntu6
2.23-0ubuntu1
2.23-0ubuntu2
2.23-0ubuntu3
2.23-0ubuntu4
2.23-0ubuntu5
2.23-0ubuntu6
2.23-0ubuntu7
2.23-0ubuntu9
2.23-0ubuntu10
2.23-0ubuntu11
2.23-0ubuntu11.2
2.23-0ubuntu11.3
2.23-0ubuntu11.3+esm1
2.23-0ubuntu11.3+esm2
2.23-0ubuntu11.3+esm3
2.23-0ubuntu11.3+esm5
2.23-0ubuntu11.3+esm6
2.23-0ubuntu11.3+esm7
2.23-0ubuntu11.3+esm8
2.23-0ubuntu11.3+esm9

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "glibc-source",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "libc-bin",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "libc-dev-bin",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "libc6",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "libc6-amd64",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "libc6-armel",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "libc6-dev-amd64",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "libc6-dev-armel",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "libc6-dev-i386",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "libc6-dev-s390",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "libc6-dev-x32",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "libc6-i386",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "libc6-pic",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "libc6-s390",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "libc6-x32",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "locales",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "locales-all",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "multiarch-support",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        },
        {
            "binary_name":  "nscd",
            "binary_version":  "2.23-0ubuntu11.3+esm9"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-97399.json"
Ubuntu:Pro:18.04:LTS
glibc

Package

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

Affected ranges

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

Affected versions

2.*
2.26-0ubuntu2
2.26-0ubuntu2.1
2.27-0ubuntu2
2.27-0ubuntu3
2.27-3ubuntu1
2.27-3ubuntu1.2
2.27-3ubuntu1.3
2.27-3ubuntu1.4
2.27-3ubuntu1.5
2.27-3ubuntu1.6
2.27-3ubuntu1.6+esm1
2.27-3ubuntu1.6+esm2
2.27-3ubuntu1.6+esm3
2.27-3ubuntu1.6+esm4
2.27-3ubuntu1.6+esm5
2.27-3ubuntu1.6+esm6

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "glibc-source",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "libc-bin",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "libc-dev-bin",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "libc6",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "libc6-amd64",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "libc6-armel",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "libc6-dev-amd64",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "libc6-dev-armel",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "libc6-dev-i386",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "libc6-dev-s390",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "libc6-dev-x32",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "libc6-i386",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "libc6-lse",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "libc6-pic",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "libc6-s390",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "libc6-x32",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "locales",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "locales-all",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "multiarch-support",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        },
        {
            "binary_name":  "nscd",
            "binary_version":  "2.27-3ubuntu1.6+esm6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-97399.json"
Ubuntu:Pro:20.04:LTS
glibc

Package

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

Affected ranges

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

Affected versions

2.*
2.30-0ubuntu2
2.30-0ubuntu3
2.31-0ubuntu5
2.31-0ubuntu6
2.31-0ubuntu7
2.31-0ubuntu9
2.31-0ubuntu9.1
2.31-0ubuntu9.2
2.31-0ubuntu9.3
2.31-0ubuntu9.7
2.31-0ubuntu9.9
2.31-0ubuntu9.12
2.31-0ubuntu9.14
2.31-0ubuntu9.15
2.31-0ubuntu9.16
2.31-0ubuntu9.17
2.31-0ubuntu9.18
2.31-0ubuntu9.18+esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "glibc-source",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "libc-bin",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "libc-dev-bin",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "libc6",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "libc6-amd64",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "libc6-armel",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "libc6-dev-amd64",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "libc6-dev-armel",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "libc6-dev-i386",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "libc6-dev-s390",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "libc6-dev-x32",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "libc6-i386",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "libc6-lse",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "libc6-pic",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "libc6-prof",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "libc6-s390",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "libc6-x32",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "locales",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "locales-all",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        },
        {
            "binary_name":  "nscd",
            "binary_version":  "2.31-0ubuntu9.18+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-97399.json"