USN-4762-1

It was discovered that the OpenSSH ssh-agent incorrectly handled memory. A remote attacker able to connect to the agent could use this issue to cause it to crash, resulting in a denial of service, or possibly execute arbitrary code.

References

Affected packages

Ubuntu:20.04:LTS / openssh

Package

Name: openssh
Purl: pkg:deb/ubuntu/openssh@1:8.2p1-4ubuntu0.2?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1:8.2p1-4ubuntu0.2

Affected versions

1:8.*

1:8.0p1-6build1

1:8.1p1-1

1:8.1p1-5

1:8.2p1-4

1:8.2p1-4ubuntu0.1

Ecosystem specific

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "openssh-client",
            "binary_version":  "1:8.2p1-4ubuntu0.2"
        },
        {
            "binary_name":  "openssh-server",
            "binary_version":  "1:8.2p1-4ubuntu0.2"
        },
        {
            "binary_name":  "openssh-sftp-server",
            "binary_version":  "1:8.2p1-4ubuntu0.2"
        },
        {
            "binary_name":  "openssh-tests",
            "binary_version":  "1:8.2p1-4ubuntu0.2"
        },
        {
            "binary_name":  "ssh",
            "binary_version":  "1:8.2p1-4ubuntu0.2"
        },
        {
            "binary_name":  "ssh-askpass-gnome",
            "binary_version":  "1:8.2p1-4ubuntu0.2"
        }
    ]
}

Database specific

cves_map

{
    "cves":  [
        {
            "id":  "CVE-2021-28041",
            "severity":  [
                {
                    "score":  "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem":  "Ubuntu:20.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4762-1.json"