UBUNTU-CVE-2026-15997

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Source
https://ubuntu.com/security/CVE-2026-15997
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-15997.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-15997
Upstream
  • CVE-2026-15997
Published
2026-07-17T00:00:00Z
Modified
2026-07-17T14:30:42.695016312Z
Severity
  • 1.7 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/S:P/AU:N/R:A/V:D/RE:M/U:Amber CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Out-of-bounds write vulnerability in Legion of the Bouncy Castle Inc. BC-LTS bcprov-lts8on on ARM allows Overflow Buffers. This vulnerability is associated with program files https://github.Com/bcgit/bc-lts-java/blob/main/nativec/arm/sha/shake.C, https://github.Com/bcgit/bc-lts-java/blob/main/nativec/arm/sha/sha3.C. This issue affects BC-LTS: from 2.73.0 before 2.73.12.1. Issue is only applicable if application involved is accepting memoable SHA3 / SHAKE states from potentially untrusted sources.

References

Affected packages

Ubuntu:26.04:LTS
bouncycastle

Package

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

Affected ranges

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

Affected versions

1.*
1.80-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.80-3",
            "binary_name": "libbcjmail-java"
        },
        {
            "binary_version": "1.80-3",
            "binary_name": "libbcmail-java"
        },
        {
            "binary_version": "1.80-3",
            "binary_name": "libbcpg-java"
        },
        {
            "binary_version": "1.80-3",
            "binary_name": "libbcpkix-java"
        },
        {
            "binary_version": "1.80-3",
            "binary_name": "libbcprov-java"
        },
        {
            "binary_version": "1.80-3",
            "binary_name": "libbctls-java"
        },
        {
            "binary_version": "1.80-3",
            "binary_name": "libbcutil-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-15997.json"
Ubuntu:Pro:16.04:LTS
bouncycastle

Package

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

Affected ranges

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

Affected versions

1.*
1.49+dfsg-3ubuntu1
1.51-4ubuntu1
1.51-4ubuntu1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.51-4ubuntu1+esm1",
            "binary_name": "libbcmail-java"
        },
        {
            "binary_version": "1.51-4ubuntu1+esm1",
            "binary_name": "libbcpg-java"
        },
        {
            "binary_version": "1.51-4ubuntu1+esm1",
            "binary_name": "libbcpkix-java"
        },
        {
            "binary_version": "1.51-4ubuntu1+esm1",
            "binary_name": "libbcprov-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-15997.json"
Ubuntu:Pro:18.04:LTS
bouncycastle

Package

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

Affected ranges

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

Affected versions

1.*
1.57-1
1.58-1
1.59-1
1.59-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.59-1ubuntu0.1~esm1",
            "binary_name": "libbcmail-java"
        },
        {
            "binary_version": "1.59-1ubuntu0.1~esm1",
            "binary_name": "libbcpg-java"
        },
        {
            "binary_version": "1.59-1ubuntu0.1~esm1",
            "binary_name": "libbcpkix-java"
        },
        {
            "binary_version": "1.59-1ubuntu0.1~esm1",
            "binary_name": "libbcprov-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-15997.json"
Ubuntu:Pro:20.04:LTS
bouncycastle

Package

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

Affected ranges

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

Affected versions

1.*
1.61-1
1.61-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.61-1ubuntu0.1~esm1",
            "binary_name": "libbcmail-java"
        },
        {
            "binary_version": "1.61-1ubuntu0.1~esm1",
            "binary_name": "libbcpg-java"
        },
        {
            "binary_version": "1.61-1ubuntu0.1~esm1",
            "binary_name": "libbcpkix-java"
        },
        {
            "binary_version": "1.61-1ubuntu0.1~esm1",
            "binary_name": "libbcprov-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-15997.json"
Ubuntu:Pro:22.04:LTS
bouncycastle

Package

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

Affected ranges

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

Affected versions

1.*
1.68-2
1.68-4
1.68-5
1.68-5ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.68-5ubuntu0.1~esm1",
            "binary_name": "libbcmail-java"
        },
        {
            "binary_version": "1.68-5ubuntu0.1~esm1",
            "binary_name": "libbcpg-java"
        },
        {
            "binary_version": "1.68-5ubuntu0.1~esm1",
            "binary_name": "libbcpkix-java"
        },
        {
            "binary_version": "1.68-5ubuntu0.1~esm1",
            "binary_name": "libbcprov-java"
        },
        {
            "binary_version": "1.68-5ubuntu0.1~esm1",
            "binary_name": "libbctls-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-15997.json"
Ubuntu:Pro:24.04:LTS
bouncycastle

Package

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

Affected ranges

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

Affected versions

1.*
1.72-2
1.77-1
1.77-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.77-1ubuntu0.1~esm1",
            "binary_name": "libbcjmail-java"
        },
        {
            "binary_version": "1.77-1ubuntu0.1~esm1",
            "binary_name": "libbcmail-java"
        },
        {
            "binary_version": "1.77-1ubuntu0.1~esm1",
            "binary_name": "libbcpg-java"
        },
        {
            "binary_version": "1.77-1ubuntu0.1~esm1",
            "binary_name": "libbcpkix-java"
        },
        {
            "binary_version": "1.77-1ubuntu0.1~esm1",
            "binary_name": "libbcprov-java"
        },
        {
            "binary_version": "1.77-1ubuntu0.1~esm1",
            "binary_name": "libbctls-java"
        },
        {
            "binary_version": "1.77-1ubuntu0.1~esm1",
            "binary_name": "libbcutil-java"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-15997.json"