USN-4875-1

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Source

https://ubuntu.com/security/notices/USN-4875-1

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4875-1.json

JSON Data

https://api.test.osv.dev/v1/vulns/USN-4875-1

Related

Published

2021-03-15T23:06:41.297094Z

Modified

2021-03-15T23:06:41.297094Z

Summary

opensmtpd vulnerabilities

Details

It was discovered that OpenSMTPD incorrectly verified the sender's or receiver's e-mail addresses under certain conditions. An attacker could possibly use this vulnerability to execute arbitrary commands as root. (CVE-2020-7247)

It was discovered that OpenSMTPD did not properly handle hardlinks under certain conditions. An unprivileged local attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 16.04 ESM. (CVE-2020-8793)

It was discovered that OpenSMTPD mishandled certain input. A remote, unauthenticated attacker could possibly use this vulnerability to execute arbitrary shell commands as any non-root user. This issue only affected Ubuntu 16.04 ESM. (CVE-2020-8794)

References

Affected packages

Ubuntu:Pro:14.04:LTS / opensmtpd

Package

Name: opensmtpd
Purl: pkg:deb/ubuntu/opensmtpd?arch=src?distro=trusty/esm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.4.1p1-1ubuntu0.1~esm1

Affected versions

5.*

5.3.3p1-4

5.4.1p1-1

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "5.4.1p1-1ubuntu0.1~esm1",
            "binary_name": "opensmtpd"
        },
        {
            "binary_version": "5.4.1p1-1ubuntu0.1~esm1",
            "binary_name": "opensmtpd-dbgsym"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / opensmtpd

Package

Name: opensmtpd
Purl: pkg:deb/ubuntu/opensmtpd?arch=src?distro=esm-apps/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.7.3p2-1ubuntu0.1~esm2

Affected versions

5.*

5.4.2p1-4

5.7.3p1-1

5.7.3p2-1

5.7.3p2-1ubuntu0.1~esm1

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "5.7.3p2-1ubuntu0.1~esm2",
            "binary_name": "opensmtpd"
        },
        {
            "binary_version": "5.7.3p2-1ubuntu0.1~esm2",
            "binary_name": "opensmtpd-dbgsym"
        }
    ]
}