USN-3795-3

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-3795-3
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3795-3.json
JSON Data
https://api.osv.dev/v1/vulns/USN-3795-3
Published
2018-11-29T14:42:17Z
Modified
2026-04-22T09:51:35.286025Z
Summary
libssh regression
Details

USN-3795-1 and USN-3795-2 fixed a vulnerability in libssh. The upstream fix introduced a regression. This update fixes the problem.

Original advisory details:

Peter Winter-Smith discovered that libssh incorrectly handled authentication when being used as a server. A remote attacker could use this issue to bypass authentication without any credentials.

References

Affected packages

Ubuntu:14.04:LTS / libssh

Package

Name
libssh
Purl
pkg:deb/ubuntu/libssh@0.6.1-0ubuntu3.5?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.6.1-0ubuntu3.5

Affected versions

0.*
0.5.4-1
0.6.1-0ubuntu2
0.6.1-0ubuntu3
0.6.1-0ubuntu3.1
0.6.1-0ubuntu3.3
0.6.1-0ubuntu3.4

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "0.6.1-0ubuntu3.5",
            "binary_name": "libssh-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3795-3.json"
cves_map 
{
    "cves": [],
    "ecosystem": "Ubuntu:14.04:LTS"
}

Ubuntu:16.04:LTS / libssh

Package

Name
libssh
Purl
pkg:deb/ubuntu/libssh@0.6.3-4.3ubuntu0.2?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.6.3-4.3ubuntu0.2

Affected versions

0.*
0.6.3-3ubuntu3
0.6.3-4.1
0.6.3-4.2
0.6.3-4.2ubuntu1
0.6.3-4.3
0.6.3-4.3ubuntu0.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "0.6.3-4.3ubuntu0.2",
            "binary_name": "libssh-4"
        },
        {
            "binary_version": "0.6.3-4.3ubuntu0.2",
            "binary_name": "libssh-gcrypt-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3795-3.json"
cves_map 
{
    "cves": [],
    "ecosystem": "Ubuntu:16.04:LTS"
}

Ubuntu:18.04:LTS / libssh

Package

Name
libssh
Purl
pkg:deb/ubuntu/libssh@0.8.0~20170825.94fa1e38-1ubuntu0.2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.8.0~20170825.94fa1e38-1ubuntu0.2

Affected versions

0.*
0.7.5-1
0.8.0~20170825.94fa1e38-1
0.8.0~20170825.94fa1e38-1build1
0.8.0~20170825.94fa1e38-1ubuntu0.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "0.8.0~20170825.94fa1e38-1ubuntu0.2",
            "binary_name": "libssh-4"
        },
        {
            "binary_version": "0.8.0~20170825.94fa1e38-1ubuntu0.2",
            "binary_name": "libssh-gcrypt-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3795-3.json"
cves_map 
{
    "cves": [],
    "ecosystem": "Ubuntu:18.04:LTS"
}