UBUNTU-CVE-2026-70457

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Source
https://ubuntu.com/security/CVE-2026-70457
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-70457.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-70457
Upstream
Published
2026-08-13T15:19:00Z
Modified
2026-09-01T21:00:08Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
  • 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
  • 8.3 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

rsync 3.2.3 before 3.5.0 contains an out-of-bounds write in parse_size_arg() where the return value of snprintf() is used directly as an index into a .bss-segment array without bounds checking. When snprintf truncates the formatted size string, the return value equals the number of characters that would have been written including the truncated portion, and this value may exceed the array length. The subsequent indexed write targets memory outside the intended array bounds, corrupting .bss memory.

References

Affected packages

Ubuntu:22.04:LTS
rsync

Package

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

Affected ranges

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

Affected versions

3.*
3.2.3-4ubuntu1
3.2.3-4ubuntu2
3.2.3-8ubuntu1
3.2.3-8ubuntu2
3.2.3-8ubuntu3
3.2.3-8ubuntu3.1
3.2.7-0ubuntu0.22.04.2
3.2.7-0ubuntu0.22.04.3
3.2.7-0ubuntu0.22.04.4
3.2.7-0ubuntu0.22.04.6
3.2.7-0ubuntu0.22.04.7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rsync",
            "binary_version": "3.2.7-0ubuntu0.22.04.7"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-70457.json"
Ubuntu:24.04:LTS
rsync

Package

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

Affected ranges

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

Affected versions

3.*
3.2.7-1
3.2.7-1build1
3.2.7-1build2
3.2.7-1ubuntu1
3.2.7-1ubuntu1.1
3.2.7-1ubuntu1.2
3.2.7-1ubuntu1.4
3.2.7-1ubuntu1.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rsync",
            "binary_version": "3.2.7-1ubuntu1.5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-70457.json"
Ubuntu:26.04:LTS
rsync

Package

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

Affected ranges

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

Affected versions

3.*
3.4.1+ds1-5ubuntu1
3.4.1+ds1-6
3.4.1+ds1-7
3.4.1+ds1-7ubuntu0.2
3.4.1+ds1-7ubuntu0.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rsync",
            "binary_version": "3.4.1+ds1-7ubuntu0.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-70457.json"
Ubuntu:Pro:14.04:LTS
rsync

Package

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

Affected ranges

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

Affected versions

3.*
3.0.9-4ubuntu1
3.1.0-2
3.1.0-2ubuntu0.1
3.1.0-2ubuntu0.2
3.1.0-2ubuntu0.3
3.1.0-2ubuntu0.4
3.1.0-2ubuntu0.4+esm1
3.1.0-2ubuntu0.4+esm2
3.1.0-2ubuntu0.4+esm3
3.1.0-2ubuntu0.4+esm4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rsync",
            "binary_version": "3.1.0-2ubuntu0.4+esm4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-70457.json"
Ubuntu:Pro:16.04:LTS
rsync

Package

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

Affected ranges

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

Affected versions

3.*
3.1.1-3
3.1.1-3ubuntu1
3.1.1-3ubuntu1.1
3.1.1-3ubuntu1.2
3.1.1-3ubuntu1.3
3.1.1-3ubuntu1.3+esm1
3.1.1-3ubuntu1.3+esm2
3.1.1-3ubuntu1.3+esm3
3.1.1-3ubuntu1.3+esm4
3.1.1-3ubuntu1.3+esm5
3.1.1-3ubuntu1.3+esm6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rsync",
            "binary_version": "3.1.1-3ubuntu1.3+esm6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-70457.json"
Ubuntu:Pro:18.04:LTS
rsync

Package

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

Affected ranges

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

Affected versions

3.*
3.1.2-2
3.1.2-2.1
3.1.2-2.1ubuntu1
3.1.2-2.1ubuntu1.1
3.1.2-2.1ubuntu1.2
3.1.2-2.1ubuntu1.3
3.1.2-2.1ubuntu1.4
3.1.2-2.1ubuntu1.5
3.1.2-2.1ubuntu1.6
3.1.2-2.1ubuntu1.6+esm1
3.1.2-2.1ubuntu1.6+esm2
3.1.2-2.1ubuntu1.6+esm3
3.1.2-2.1ubuntu1.6+esm4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rsync",
            "binary_version": "3.1.2-2.1ubuntu1.6+esm4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-70457.json"
Ubuntu:Pro:20.04:LTS
rsync

Package

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

Affected ranges

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

Affected versions

3.*
3.1.3-6
3.1.3-8
3.1.3-8ubuntu0.1
3.1.3-8ubuntu0.2
3.1.3-8ubuntu0.3
3.1.3-8ubuntu0.4
3.1.3-8ubuntu0.5
3.1.3-8ubuntu0.7
3.1.3-8ubuntu0.8
3.1.3-8ubuntu0.9
3.1.3-8ubuntu0.9+esm1
3.1.3-8ubuntu0.9+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rsync",
            "binary_version": "3.1.3-8ubuntu0.9+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-70457.json"