UBUNTU-CVE-2017-6542

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Source
https://ubuntu.com/security/CVE-2017-6542
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-6542.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2017-6542
Upstream
Published
2017-03-27T17:59:00Z
Modified
2025-07-16T07:37:02.609041Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The sshagentchannel_data function in PuTTY before 0.68 allows remote attackers to have unspecified impact via a large length value in an agent protocol message and leveraging the ability to connect to the Unix-domain socket representing the forwarded agent connection, which trigger a buffer overflow.

References

Affected packages

Ubuntu:16.04:LTS / putty

Package

Name
putty
Purl
pkg:deb/ubuntu/putty@0.67-3build0.16.04.1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.67-3build0.16.04.1

Affected versions

0.*

0.65-2
0.66-1
0.66-2
0.66-3
0.66-4
0.67-1
0.67-2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "pterm",
            "binary_version": "0.67-3build0.16.04.1"
        },
        {
            "binary_name": "pterm-dbgsym",
            "binary_version": "0.67-3build0.16.04.1"
        },
        {
            "binary_name": "putty",
            "binary_version": "0.67-3build0.16.04.1"
        },
        {
            "binary_name": "putty-dbgsym",
            "binary_version": "0.67-3build0.16.04.1"
        },
        {
            "binary_name": "putty-doc",
            "binary_version": "0.67-3build0.16.04.1"
        },
        {
            "binary_name": "putty-tools",
            "binary_version": "0.67-3build0.16.04.1"
        },
        {
            "binary_name": "putty-tools-dbgsym",
            "binary_version": "0.67-3build0.16.04.1"
        }
    ]
}

Ubuntu:18.04:LTS / putty

Package

Name
putty
Purl
pkg:deb/ubuntu/putty@0.70-4?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.70-4

Affected versions

0.*

0.70-1
0.70-2
0.70-3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "pterm",
            "binary_version": "0.70-4"
        },
        {
            "binary_name": "pterm-dbgsym",
            "binary_version": "0.70-4"
        },
        {
            "binary_name": "putty",
            "binary_version": "0.70-4"
        },
        {
            "binary_name": "putty-dbgsym",
            "binary_version": "0.70-4"
        },
        {
            "binary_name": "putty-doc",
            "binary_version": "0.70-4"
        },
        {
            "binary_name": "putty-tools",
            "binary_version": "0.70-4"
        },
        {
            "binary_name": "putty-tools-dbgsym",
            "binary_version": "0.70-4"
        }
    ]
}