SB2020043008 - Ubuntu update for Mailman
Published: April 30, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Cross-site scripting (CVE-ID: CVE-2018-0618)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
2) Spoofing attack (CVE-ID: CVE-2018-13796)
The vulnerability allows a remote attacker to conduct spoofing attack.
The vulnerability exists due to insufficient input validation. A remote attacker can submit a specially crafted URL and cause arbitrary text to be displayed on a web page from a trusted site.
3) Stored cross-site scripting (CVE-ID: CVE-2020-12137)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to mailman uses the .obj extension for scrubbed application/octet-stream MIME parts. A remote attacker can send a specially crafted attachment to the list, trick the victim to open the email in the list archive and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Remediation
Install update from vendor's website.