Ubuntu update for Mailman

1) Cross-site scripting

EUVDB-ID: #VU13585

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0618

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

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.

Mitigation

Update the affected packages.

Ubuntu 18.04 LTS

mailman - 1:2.1.26-1ubuntu0.1

Ubuntu 16.04 LTS

mailman - 1:2.1.20-1ubuntu0.4

Vulnerable software versions

mailman (Ubuntu package): 1:2.1.20-1ubuntu0.1 - 1:2.1.26-1

External links

http://usn.ubuntu.com/4348-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Spoofing attack

EUVDB-ID: #VU14330

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-13796

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

Exploit availability: No

Description

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.

Mitigation

Update the affected packages.

Ubuntu 18.04 LTS

mailman - 1:2.1.26-1ubuntu0.1

Ubuntu 16.04 LTS

mailman - 1:2.1.20-1ubuntu0.4

Vulnerable software versions

mailman (Ubuntu package): 1:2.1.20-1ubuntu0.1 - 1:2.1.26-1

External links

http://usn.ubuntu.com/4348-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Stored cross-site scripting

EUVDB-ID: #VU27366

Risk: Medium

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-12137

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

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.

Mitigation

Update the affected packages.

Ubuntu 18.04 LTS

mailman - 1:2.1.26-1ubuntu0.1

Ubuntu 16.04 LTS

mailman - 1:2.1.20-1ubuntu0.4

Vulnerable software versions

mailman (Ubuntu package): 1:2.1.20-1ubuntu0.1 - 1:2.1.26-1

External links

http://usn.ubuntu.com/4348-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.