UBUNTU-CVE-2026-110598

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Source
https://ubuntu.com/security/CVE-2026-110598
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110598.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-110598
Upstream
Published
2026-10-15T00:00:00Z
Modified
2026-10-17T12:59:52Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H CVSS Calculator
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Libyal libpff through 20260926 contains an integer underflow in libpff_record_entry_get_multi_value() that allows attackers to trigger heap out-of-bounds reads via non-monotonic multi-value offsets. Attackers can craft PST, OST or PAB files with decreasing PT_MV_STRING8, PT_MV_UNICODE or PT_MV_BINARY offsets to crash libpff, pypff or pffexport and expose adjacent heap memory.

References

Affected packages

Ubuntu:16.04:LTS
libpff

Package

Name
libpff
Purl
pkg:deb/ubuntu/libpff?arch=source&distro=xenial

Affected ranges

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

Affected versions

Other
20120802-5

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libpff1",
            "binary_version":  "20120802-5"
        },
        {
            "binary_name":  "pff-tools",
            "binary_version":  "20120802-5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110598.json"
Ubuntu:18.04:LTS
libpff

Package

Name
libpff
Purl
pkg:deb/ubuntu/libpff?arch=source&distro=bionic

Affected ranges

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

Affected versions

Other
20120802-5
20120802-5.*
20120802-5.1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libpff1",
            "binary_version":  "20120802-5.1"
        },
        {
            "binary_name":  "pff-tools",
            "binary_version":  "20120802-5.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110598.json"
Ubuntu:20.04:LTS
libpff

Package

Name
libpff
Purl
pkg:deb/ubuntu/libpff?arch=source&distro=focal

Affected ranges

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

Affected versions

Other
20180714-1
20180714-2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libpff1",
            "binary_version":  "20180714-2"
        },
        {
            "binary_name":  "pff-tools",
            "binary_version":  "20180714-2"
        },
        {
            "binary_name":  "python3-pypff",
            "binary_version":  "20180714-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110598.json"
Ubuntu:22.04:LTS
libpff

Package

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

Affected ranges

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

Affected versions

Other
20180714-3
20180714-3build1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libpff1",
            "binary_version":  "20180714-3build1"
        },
        {
            "binary_name":  "pff-tools",
            "binary_version":  "20180714-3build1"
        },
        {
            "binary_name":  "python3-pypff",
            "binary_version":  "20180714-3build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110598.json"
Ubuntu:24.04:LTS
libpff

Package

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

Affected ranges

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

Affected versions

Other
20180714-3build2
20180714-3build3
20180714-3.*
20180714-3.1
20180714-3.1build1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libpff1t64",
            "binary_version":  "20180714-3.1build1"
        },
        {
            "binary_name":  "pff-tools",
            "binary_version":  "20180714-3.1build1"
        },
        {
            "binary_name":  "python3-pypff",
            "binary_version":  "20180714-3.1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110598.json"
Ubuntu:26.04:LTS
libpff

Package

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

Affected ranges

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

Affected versions

20180714-3.*
20180714-3.1build2
Other
20231205-1
20231205-1build1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libpff1t64",
            "binary_version":  "20231205-1build1"
        },
        {
            "binary_name":  "pff-tools",
            "binary_version":  "20231205-1build1"
        },
        {
            "binary_name":  "python3-pypff",
            "binary_version":  "20231205-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110598.json"
Ubuntu:26.10
libpff

Package

Name
libpff
Purl
pkg:deb/ubuntu/libpff?arch=source&distro=stonking

Affected ranges

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

Affected versions

Other
20231205-1build1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libpff1t64",
            "binary_version":  "20231205-1build1"
        },
        {
            "binary_name":  "pff-tools",
            "binary_version":  "20231205-1build1"
        },
        {
            "binary_name":  "python3-pypff",
            "binary_version":  "20231205-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110598.json"