Debian update for mailman
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2020-12108 CVE-2020-15011 CVE-2021-42096 CVE-2021-42097 |
| CWE-ID | CWE-451 CWE-94 CWE-338 CWE-352 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
Debian Linux Operating systems & Components / Operating system mailman (Debian package) Operating systems & Components / Operating system package or component |
| Vendor | Debian |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Spoofing attack
EUVDB-ID: #VU28635
Risk: Medium
CVSSv3.1: 4.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-12108
CWE-ID:
CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data when processing email addresses. A remote attacker can create a specially crafted email and spoof content of email message.
Update mailman package to version 1:2.1.29-1+deb10u2.
Vulnerable software versionsDebian Linux: All versions
mailman (Debian package): before 1:2.1.29-1+deb10u2
External linkshttp://www.debian.org/security/2021/dsa-4991
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. However, proof of concept for this vulnerability is available.
2) Code Injection
EUVDB-ID: #VU29388
Risk: Low
CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-15011
CWE-ID:
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to inject arbitrary content.
The vulnerability exists due to improper input validation within the Cgi/private.py private archive login page. A remote attacker can send a specially crafted request and inject arbitrary content.
Successful exploitation of the vulnerability requires that the roster visibility (private_roster) setting is 'Anyone'.
Update mailman package to version 1:2.1.29-1+deb10u2.
Vulnerable software versionsDebian Linux: All versions
mailman (Debian package): before 1:2.1.29-1+deb10u2
External linkshttp://www.debian.org/security/2021/dsa-4991
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) Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
EUVDB-ID: #VU58348
Risk: Medium
CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-42096
CWE-ID:
CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to brute-force the administrative password.
The vulnerability exists due to a certain csrf_token value is derived from the admin password. A remote attacker can conduct a brute-force attack against that password and gain unauthorized access to the application.
Update mailman package to version 1:2.1.29-1+deb10u2.
Vulnerable software versionsDebian Linux: All versions
mailman (Debian package): before 1:2.1.29-1+deb10u2
External linkshttp://www.debian.org/security/2021/dsa-4991
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Cross-site request forgery
EUVDB-ID: #VU58347
Risk: Medium
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-2021-42097
CWE-ID:
CWE-352 - Cross-Site Request Forgery (CSRF)
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform cross-site request forgery attacks.
The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and take over the admin account, as the csrf_token value is not specific to a single user account.
MitigationUpdate mailman package to version 1:2.1.29-1+deb10u2.
Vulnerable software versionsDebian Linux: All versions
mailman (Debian package): before 1:2.1.29-1+deb10u2
External linkshttp://www.debian.org/security/2021/dsa-4991
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.
