USN-5053-1

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Source

https://ubuntu.com/security/notices/USN-5053-1

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5053-1.json

JSON Data

https://api.osv.dev/v1/vulns/USN-5053-1

Related

Published

2021-08-26T15:37:38.403393Z

Modified

2021-08-26T15:37:38.403393Z

Summary

libssh vulnerability

Details

It was discovered that libssh incorrectly handled rekeying. A remote attacker could use this issue to cause libssh to crash, resulting in a denial of service, or possibly execute arbitrary code.

References

Affected packages

Ubuntu:20.04:LTS / libssh

Package

Name: libssh
Purl: pkg:deb/ubuntu/libssh?arch=src?distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.9.3-2ubuntu2.2

Affected versions

0.*

0.9.0-1ubuntu1

0.9.0-1ubuntu4

0.9.0-1ubuntu5

0.9.3-2ubuntu1

0.9.3-2ubuntu2

0.9.3-2ubuntu2.1

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "0.9.3-2ubuntu2.2",
            "binary_name": "libssh-4"
        },
        {
            "binary_version": "0.9.3-2ubuntu2.2",
            "binary_name": "libssh-4-dbgsym"
        },
        {
            "binary_version": "0.9.3-2ubuntu2.2",
            "binary_name": "libssh-dev"
        },
        {
            "binary_version": "0.9.3-2ubuntu2.2",
            "binary_name": "libssh-doc"
        },
        {
            "binary_version": "0.9.3-2ubuntu2.2",
            "binary_name": "libssh-gcrypt-4"
        },
        {
            "binary_version": "0.9.3-2ubuntu2.2",
            "binary_name": "libssh-gcrypt-4-dbgsym"
        },
        {
            "binary_version": "0.9.3-2ubuntu2.2",
            "binary_name": "libssh-gcrypt-dev"
        }
    ]
}