UBUNTU-CVE-2017-9445

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Source
https://ubuntu.com/security/CVE-2017-9445
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-9445.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2017-9445
Upstream
Related
  • USN-3341-1
Published
2017-06-27T00:00:00Z
Modified
2025-09-08T16:44:17Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - high
Summary
[none]
Details

In systemd through 233, certain sizes passed to dnspacketnew in systemd-resolved can cause it to allocate a buffer that's too small. A malicious DNS server can exploit this via a response with a specially crafted TCP payload to trick systemd-resolved into allocating a buffer that's too small, and subsequently write arbitrary data beyond the end of it.

References

Affected packages

Ubuntu:16.04:LTS / systemd

Package

Name
systemd
Purl
pkg:deb/ubuntu/systemd@229-4ubuntu19?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
229-4ubuntu19

Affected versions

Other

225-1ubuntu9
227-2ubuntu1
227-2ubuntu2
228-1ubuntu2
228-2ubuntu1
228-2ubuntu2
228-3ubuntu1
228-4ubuntu1
228-4ubuntu2
228-5ubuntu1
228-5ubuntu2
228-5ubuntu3
228-6ubuntu1
229-1ubuntu2
229-1ubuntu4
229-2ubuntu1
229-3ubuntu1
229-3ubuntu2
229-4ubuntu1
229-4ubuntu4
229-4ubuntu5
229-4ubuntu6
229-4ubuntu7
229-4ubuntu8
229-4ubuntu10
229-4ubuntu11
229-4ubuntu12
229-4ubuntu13
229-4ubuntu16
229-4ubuntu17

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "229-4ubuntu19",
            "binary_name": "libnss-myhostname"
        },
        {
            "binary_version": "229-4ubuntu19",
            "binary_name": "libnss-mymachines"
        },
        {
            "binary_version": "229-4ubuntu19",
            "binary_name": "libnss-resolve"
        },
        {
            "binary_version": "229-4ubuntu19",
            "binary_name": "libpam-systemd"
        },
        {
            "binary_version": "229-4ubuntu19",
            "binary_name": "libsystemd-dev"
        },
        {
            "binary_version": "229-4ubuntu19",
            "binary_name": "libsystemd0"
        },
        {
            "binary_version": "229-4ubuntu19",
            "binary_name": "libudev-dev"
        },
        {
            "binary_version": "229-4ubuntu19",
            "binary_name": "libudev1"
        },
        {
            "binary_version": "229-4ubuntu19",
            "binary_name": "systemd"
        },
        {
            "binary_version": "229-4ubuntu19",
            "binary_name": "systemd-container"
        },
        {
            "binary_version": "229-4ubuntu19",
            "binary_name": "systemd-coredump"
        },
        {
            "binary_version": "229-4ubuntu19",
            "binary_name": "systemd-journal-remote"
        },
        {
            "binary_version": "229-4ubuntu19",
            "binary_name": "systemd-sysv"
        },
        {
            "binary_version": "229-4ubuntu19",
            "binary_name": "udev"
        }
    ]
}