Executive Summary
Summary | |
---|---|
Title | OpenSMTPD vulnerabilities |
Informations | |||
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Name | USN-4294-1 | First vendor Publication | 2020-03-02 |
Vendor | Ubuntu | Last vendor Modification | 2020-03-02 |
Severity (Vendor) | N/A | Revision | N/A |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | |||
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Overall CVSS Score | 9.8 | ||
Base Score | 9.8 | Environmental Score | 9.8 |
impact SubScore | 5.9 | Temporal Score | 9.8 |
Exploitabality Sub Score | 3.9 | ||
Attack Vector | Network | Attack Complexity | Low |
Privileges Required | None | User Interaction | None |
Scope | Unchanged | Confidentiality Impact | High |
Integrity Impact | High | Availability Impact | High |
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:L/Au:N/C:C/I:C/A:C) | |||
---|---|---|---|
Cvss Base Score | 10 | Attack Range | Network |
Cvss Impact Score | 10 | Attack Complexity | Low |
Cvss Expoit Score | 10 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 19.10 - Ubuntu 18.04 LTS Summary: Several security issues were fixed in opensmtpd. Software Description: - opensmtpd: secure, reliable, lean, and easy-to configure SMTP server Details: It was discovered that OpenSMTPD mishandled certain input. A remote, unauthenticated attacker could use this vulnerability to execute arbitrary shell commands as any non-root user. (CVE-2020-8794) It was discovered that OpenSMTPD did not properly handle hardlinks under certain conditions. An unprivileged local attacker could read the first line of any file on the filesystem. (CVE-2020-8793) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 19.10: Ubuntu 18.04 LTS: In general, a standard system update will make all the necessary changes. References: Package Information: |
Original Source
Url : http://www.ubuntu.com/usn/USN-4294-1 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
33 % | CWE-426 | Untrusted Search Path |
33 % | CWE-367 | Time-of-check Time-of-use (TOCTOU) Race Condition |
33 % | CWE-125 | Out-of-bounds Read |
CPE : Common Platform Enumeration
Type | Description | Count |
---|---|---|
Application | 1 | |
Os | 2 | |
Os | 2 | |
Os | 2 |
Snort® IPS/IDS
Date | Description |
---|---|
2020-07-29 | OpenSMTPD mta_io remote command injection attempt RuleID : 54388 - Revision : 1 - Type : SERVER-OTHER |
2020-07-02 | OpenSMTPD mta_io remote command injection attempt RuleID : 54122 - Revision : 1 - Type : SERVER-OTHER |
Alert History
Date | Informations |
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2020-05-23 13:03:46 |
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2020-03-02 21:18:22 |
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