USN-6585-1

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Source

https://ubuntu.com/security/notices/USN-6585-1

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6585-1.json

JSON Data

https://api.osv.dev/v1/vulns/USN-6585-1

Related

Published

2024-01-15T18:31:03.143488Z

Modified

2024-01-15T18:31:03.143488Z

Summary

libssh2 vulnerability

Details

Fabian Bäumer, Marcus Brinkmann, Jörg Schwenk discovered that the SSH protocol was vulnerable to a prefix truncation attack. If a remote attacker was able to intercept SSH communications, extension negotiation messages could be truncated, possibly leading to certain algorithms and features being downgraded. This issue is known as the Terrapin attack. This update adds protocol extensions to mitigate this issue.

References

Affected packages

Ubuntu:23.10 / libssh2

Package

Name: libssh2
Purl: pkg:deb/ubuntu/libssh2?arch=src?distro=mantic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.11.0-2ubuntu0.1

Affected versions

1.*

1.10.0-3

1.11.0-2

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1.11.0-2ubuntu0.1",
            "binary_name": "libssh2-1"
        },
        {
            "binary_version": "1.11.0-2ubuntu0.1",
            "binary_name": "libssh2-1-dbgsym"
        },
        {
            "binary_version": "1.11.0-2ubuntu0.1",
            "binary_name": "libssh2-1-dev"
        }
    ]
}