UBUNTU-CVE-2026-115484

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Source
https://ubuntu.com/security/CVE-2026-115484
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115484.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-115484
Upstream
  • CVE-2026-115484
Published
2026-10-23T01:16:00Z
Modified
2026-10-28T17:50:38Z
Severity
  • 7.6 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in the iscsiuio component of open-iscsi. The DHCPv4 option parser incorrectly calculates the length of the options data, causing it to read beyond the allocated buffer into adjacent heap memory. An attacker on the same network segment can send a crafted DHCP response to crash the daemon or corrupt its network configuration.

References

Affected packages

Ubuntu:14.04:LTS
open-iscsi

Package

Name
open-iscsi
Purl
pkg:deb/ubuntu/open-iscsi?arch=source&distro=trusty

Affected ranges

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

Affected versions

2.*
2.0.873-3ubuntu7
2.0.873-3ubuntu8
2.0.873-3ubuntu9

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "open-iscsi",
            "binary_version": "2.0.873-3ubuntu9"
        },
        {
            "binary_name": "open-iscsi-utils",
            "binary_version": "2.0.873-3ubuntu9"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115484.json"
Ubuntu:20.04:LTS
open-iscsi

Package

Name
open-iscsi
Purl
pkg:deb/ubuntu/open-iscsi?arch=source&distro=focal

Affected ranges

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

Affected versions

2.*
2.0.874-7.1ubuntu3
2.0.874-7.1ubuntu5
2.0.874-7.1ubuntu6
2.0.874-7.1ubuntu6.1
2.0.874-7.1ubuntu6.2
2.0.874-7.1ubuntu6.3
2.0.874-7.1ubuntu6.4
2.0.874-7.1ubuntu6.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "iscsiuio",
            "binary_version": "2.0.874-7.1ubuntu6.5"
        },
        {
            "binary_name": "open-iscsi",
            "binary_version": "2.0.874-7.1ubuntu6.5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115484.json"
Ubuntu:22.04:LTS
open-iscsi

Package

Name
open-iscsi
Purl
pkg:deb/ubuntu/open-iscsi?arch=source&distro=jammy

Affected ranges

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

Affected versions

2.*
2.1.4-0ubuntu1
2.1.4-0ubuntu2
2.1.4-0ubuntu3
2.1.4-0ubuntu4
2.1.5-1ubuntu1
2.1.5-1ubuntu1.1
2.1.5-1ubuntu1.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "iscsiuio",
            "binary_version": "2.1.5-1ubuntu1.3"
        },
        {
            "binary_name": "libopeniscsiusr",
            "binary_version": "2.1.5-1ubuntu1.3"
        },
        {
            "binary_name": "libopeniscsiusr0.2.0",
            "binary_version": "2.1.5-1ubuntu1.3"
        },
        {
            "binary_name": "open-iscsi",
            "binary_version": "2.1.5-1ubuntu1.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115484.json"
Ubuntu:24.04:LTS
open-iscsi

Package

Name
open-iscsi
Purl
pkg:deb/ubuntu/open-iscsi?arch=source&distro=noble

Affected ranges

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

Affected versions

2.*
2.1.8-1ubuntu2
2.1.9-3ubuntu1
2.1.9-3ubuntu2
2.1.9-3ubuntu3
2.1.9-3ubuntu4
2.1.9-3ubuntu5.1
2.1.9-3ubuntu5.2
2.1.9-3ubuntu5.3
2.1.9-3ubuntu5.4
2.1.9-3ubuntu5.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "iscsiuio",
            "binary_version": "2.1.9-3ubuntu5.5"
        },
        {
            "binary_name": "libopeniscsiusr",
            "binary_version": "2.1.9-3ubuntu5.5"
        },
        {
            "binary_name": "open-iscsi",
            "binary_version": "2.1.9-3ubuntu5.5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115484.json"
Ubuntu:26.04:LTS
open-iscsi

Package

Name
open-iscsi
Purl
pkg:deb/ubuntu/open-iscsi?arch=source&distro=resolute

Affected ranges

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

Affected versions

2.*
2.1.11-1ubuntu3
2.1.11-3ubuntu1
2.1.11-3ubuntu2
2.1.11-3ubuntu3
2.1.11-3ubuntu3.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "iscsiuio",
            "binary_version": "2.1.11-3ubuntu3.1"
        },
        {
            "binary_name": "libopeniscsiusr",
            "binary_version": "2.1.11-3ubuntu3.1"
        },
        {
            "binary_name": "open-iscsi",
            "binary_version": "2.1.11-3ubuntu3.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115484.json"
Ubuntu:26.10
open-iscsi

Package

Name
open-iscsi
Purl
pkg:deb/ubuntu/open-iscsi?arch=source&distro=stonking

Affected ranges

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

Affected versions

2.*
2.1.11-3ubuntu3
2.1.11-5ubuntu1
2.1.11-5ubuntu4
2.1.11-5ubuntu5
2.1.11-5ubuntu6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "iscsiuio",
            "binary_version": "2.1.11-5ubuntu6"
        },
        {
            "binary_name": "libopeniscsiusr",
            "binary_version": "2.1.11-5ubuntu6"
        },
        {
            "binary_name": "open-iscsi",
            "binary_version": "2.1.11-5ubuntu6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115484.json"
Ubuntu:Pro:16.04:LTS
open-iscsi

Package

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

Affected ranges

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

Affected versions

2.*
2.0.873-3ubuntu13
2.0.873+git0.3b4b4500-13ubuntu3
2.0.873+git0.3b4b4500-14ubuntu1
2.0.873+git0.3b4b4500-14ubuntu3
2.0.873+git0.3b4b4500-14ubuntu3.1
2.0.873+git0.3b4b4500-14ubuntu3.2
2.0.873+git0.3b4b4500-14ubuntu3.3
2.0.873+git0.3b4b4500-14ubuntu3.4
2.0.873+git0.3b4b4500-14ubuntu3.5
2.0.873+git0.3b4b4500-14ubuntu3.6
2.0.873+git0.3b4b4500-14ubuntu3.7
2.0.873+git0.3b4b4500-14ubuntu3.7+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "open-iscsi",
            "binary_version": "2.0.873+git0.3b4b4500-14ubuntu3.7+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115484.json"
Ubuntu:Pro:18.04:LTS
open-iscsi

Package

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

Affected ranges

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

Affected versions

2.*
2.0.874-4ubuntu3
2.0.874-4ubuntu4
2.0.874-4ubuntu5
2.0.874-5ubuntu1
2.0.874-5ubuntu2
2.0.874-5ubuntu2.1
2.0.874-5ubuntu2.2
2.0.874-5ubuntu2.3
2.0.874-5ubuntu2.4
2.0.874-5ubuntu2.6
2.0.874-5ubuntu2.7
2.0.874-5ubuntu2.9
2.0.874-5ubuntu2.10
2.0.874-5ubuntu2.11
2.0.874-5ubuntu2.11+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "iscsiuio",
            "binary_version": "2.0.874-5ubuntu2.11+esm1"
        },
        {
            "binary_name": "open-iscsi",
            "binary_version": "2.0.874-5ubuntu2.11+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115484.json"