UBUNTU-CVE-2025-35979

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Source
https://ubuntu.com/security/CVE-2025-35979
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35979.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-35979
Upstream
  • CVE-2025-35979
Published
2026-05-12T17:16:00Z
Modified
2026-05-27T19:15:08.885636353Z
Severity
  • 6.8 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel(R) Processors within VMX non-root (guest) operation may allow an information disclosure. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable data exposure. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (none) and availability (none) impacts.

References

Affected packages

Ubuntu:22.04:LTS
intel-microcode

Package

Name
intel-microcode
Purl
pkg:deb/ubuntu/intel-microcode?arch=source&distro=jammy

Affected ranges

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

Affected versions

3.*
3.20210608.2ubuntu1
3.20220510.0ubuntu0.22.04.1
3.20220809.0ubuntu0.22.04.1
3.20230214.0ubuntu0.22.04.1
3.20230808.0ubuntu0.22.04.1
3.20231114.0ubuntu0.22.04.1
3.20240514.0ubuntu0.22.04.1
3.20240813.0ubuntu0.22.04.2
3.20240910.0ubuntu0.22.04.1
3.20241112.0ubuntu0.22.04.1
3.20250211.0ubuntu0.22.04.1
3.20250512.0ubuntu0.22.04.1
3.20250812.0ubuntu0.22.04.1
3.20260210.0ubuntu0.22.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "intel-microcode",
            "binary_version": "3.20260210.0ubuntu0.22.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35979.json"
Ubuntu:24.04:LTS
intel-microcode

Package

Name
intel-microcode
Purl
pkg:deb/ubuntu/intel-microcode?arch=source&distro=noble

Affected ranges

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

Affected versions

3.*
3.20230808.1
3.20231114.0ubuntu1
3.20231114.1
3.20240312.1
3.20240312.1build1
3.20240514.0ubuntu0.24.04.1
3.20240813.0ubuntu0.24.04.2
3.20240910.0ubuntu0.24.04.1
3.20241112.0ubuntu0.24.04.1
3.20250211.0ubuntu0.24.04.1
3.20250512.0ubuntu0.24.04.1
3.20250812.0ubuntu0.24.04.1
3.20260210.0ubuntu0.24.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "intel-microcode",
            "binary_version": "3.20260210.0ubuntu0.24.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35979.json"
Ubuntu:25.10
intel-microcode

Package

Name
intel-microcode
Purl
pkg:deb/ubuntu/intel-microcode?arch=source&distro=questing

Affected ranges

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

Affected versions

3.*
3.20250211.1ubuntu1
3.20250512.1ubuntu1
3.20250812.0ubuntu0.25.10.1
3.20260210.0ubuntu0.25.10.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "intel-microcode",
            "binary_version": "3.20260210.0ubuntu0.25.10.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35979.json"
Ubuntu:26.04:LTS
intel-microcode

Package

Name
intel-microcode
Purl
pkg:deb/ubuntu/intel-microcode?arch=source&distro=resolute

Affected ranges

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

Affected versions

3.*
3.20250512.1ubuntu1
3.20250812.1ubuntu1
3.20260210.1ubuntu1
3.20260210.1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "intel-microcode",
            "binary_version": "3.20260210.1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35979.json"
Ubuntu:Pro:14.04:LTS
intel-microcode

Package

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

Affected ranges

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

Affected versions

1.*
1.20130906.1ubuntu2
1.20130906.1ubuntu3
2.*
2.20140122.1
2.20140430.1ubuntu1
2.20140624-t-1ubuntu2
3.*
3.20180108.0~ubuntu14.04.2
3.20180108.0+really20170707ubuntu14.04.1
3.20180312.0~ubuntu14.04.1
3.20180425.1~ubuntu0.14.04.1
3.20180425.1~ubuntu0.14.04.2
3.20180807a.0ubuntu0.14.04.1
3.20190514.0ubuntu0.14.04.1
3.20190514.0ubuntu0.14.04.2
3.20190618.0ubuntu0.14.04.1
3.20191112-0ubuntu0.14.04.2
3.20191115.1ubuntu0.14.04.1
3.20191115.1ubuntu0.14.04.2
3.20200609.0ubuntu0.14.04.0
3.20200609.0ubuntu0.14.04.1
3.20201110.0ubuntu0.14.04.1
3.20201110.0ubuntu0.14.04.2
3.20210608.0ubuntu0.14.04.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "intel-microcode",
            "binary_version": "3.20210608.0ubuntu0.14.04.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35979.json"
Ubuntu:Pro:16.04:LTS
intel-microcode

Package

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

Affected ranges

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

Affected versions

3.*
3.20150121.1
3.20151106.1
3.20170707.1~ubuntu16.04.0
3.20180108.0~ubuntu16.04.2
3.20180108.0+really20170707ubuntu16.04.1
3.20180312.0~ubuntu16.04.1
3.20180425.1~ubuntu0.16.04.1
3.20180425.1~ubuntu0.16.04.2
3.20180807a.0ubuntu0.16.04.1
3.20190514.0ubuntu0.16.04.1
3.20190514.0ubuntu0.16.04.2
3.20190618.0ubuntu0.16.04.1
3.20191112-0ubuntu0.16.04.2
3.20191115.1ubuntu0.16.04.1
3.20191115.1ubuntu0.16.04.2
3.20200609.0ubuntu0.16.04.0
3.20200609.0ubuntu0.16.04.1
3.20201110.0ubuntu0.16.04.1
3.20201110.0ubuntu0.16.04.2
3.20210216.0ubuntu0.16.04.1
3.20210608.0ubuntu0.16.04.1+esm1
3.20220510.0ubuntu0.16.04.1+esm1
3.20230214.0ubuntu0.16.04.1+esm1
3.20230808.0ubuntu0.16.04.1+esm1
3.20231114.0ubuntu0.16.04.1+esm1
3.20240514.0ubuntu0.16.04.1+esm1
3.20240813.0ubuntu0.16.04.1+esm2
3.20240910.0ubuntu0.16.04.1+esm1
3.20241112.0ubuntu0.16.04.1+esm1
3.20250211.0ubuntu0.16.04.1+esm1
3.20250512.0ubuntu0.16.04.1+esm1
3.20250812.0ubuntu0.16.04.1+esm1
3.20260210.0ubuntu0.16.04.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "intel-microcode",
            "binary_version": "3.20260210.0ubuntu0.16.04.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35979.json"
Ubuntu:Pro:18.04:LTS
intel-microcode

Package

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

Affected ranges

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

Affected versions

3.*
3.20170707.1
3.20171117.1
3.20180108.1
3.20180108.1+really20171117.1
3.20180312.0~ubuntu18.04.1
3.20180425.1~ubuntu0.18.04.1
3.20180425.1~ubuntu0.18.04.2
3.20180807a.0ubuntu0.18.04.1
3.20190514.0ubuntu0.18.04.2
3.20190514.0ubuntu0.18.04.3
3.20190618.0ubuntu0.18.04.1
3.20191112-0ubuntu0.18.04.2
3.20191115.1ubuntu0.18.04.1
3.20191115.1ubuntu0.18.04.2
3.20200609.0ubuntu0.18.04.0
3.20200609.0ubuntu0.18.04.1
3.20201110.0ubuntu0.18.04.1
3.20201110.0ubuntu0.18.04.2
3.20210216.0ubuntu0.18.04.1
3.20210608.0ubuntu0.18.04.1
3.20220510.0ubuntu0.18.04.1
3.20220809.0ubuntu0.18.04.1
3.20230214.0ubuntu0.18.04.1
3.20230808.0ubuntu0.18.04.1+esm1
3.20231114.0ubuntu0.18.04.1+esm1
3.20240514.0ubuntu0.18.04.1+esm1
3.20240813.0ubuntu0.18.04.1+esm2
3.20240910.0ubuntu0.18.04.1+esm1
3.20241112.0ubuntu0.18.04.1+esm1
3.20250211.0ubuntu0.18.04.1+esm1
3.20250512.0ubuntu0.18.04.1+esm1
3.20250812.0ubuntu0.18.04.1+esm1
3.20260210.0ubuntu0.18.04.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "intel-microcode",
            "binary_version": "3.20260210.0ubuntu0.18.04.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35979.json"
Ubuntu:Pro:20.04:LTS
intel-microcode

Package

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

Affected ranges

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

Affected versions

3.*
3.20190918.1ubuntu1
3.20191115.1ubuntu1
3.20191115.1ubuntu2
3.20191115.1ubuntu3
3.20200609.0ubuntu0.20.04.0
3.20200609.0ubuntu0.20.04.1
3.20200609.0ubuntu0.20.04.2
3.20201110.0ubuntu0.20.04.1
3.20201110.0ubuntu0.20.04.2
3.20210216.0ubuntu0.20.04.1
3.20210608.0ubuntu0.20.04.1
3.20220510.0ubuntu0.20.04.1
3.20220809.0ubuntu0.20.04.1
3.20230214.0ubuntu0.20.04.1
3.20230808.0ubuntu0.20.04.1
3.20231114.0ubuntu0.20.04.1
3.20240514.0ubuntu0.20.04.1
3.20240813.0ubuntu0.20.04.2
3.20240910.0ubuntu0.20.04.1
3.20241112.0ubuntu0.20.04.1
3.20250211.0ubuntu0.20.04.1
3.20250512.0ubuntu0.20.04.1
3.20250812.0ubuntu0.20.04.1+esm1
3.20260210.0ubuntu0.20.04.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "intel-microcode",
            "binary_version": "3.20260210.0ubuntu0.20.04.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35979.json"