Multiple vulnerabilities in Apache James
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2021-40111 CVE-2021-38542 CVE-2021-40525 CVE-2021-40110 |
| CWE-ID | CWE-835 CWE-77 CWE-22 CWE-185 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Apache James Server applications / Mail servers |
| Vendor | Apache Foundation |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Infinite loop
EUVDB-ID: #VU59162
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-40111
CWE-ID:
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop when parsing APPEND and STATUS IMAP commands. A remote user can send a specially crafted command to the server, consume all available system resources and cause denial of service conditions.
MitigationInstall updates from vendor's website.
Vulnerable software versionsApache James: 2.1 - 3.6.0
External linkshttp://seclists.org/oss-sec/2022/q1/3
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Command Injection
EUVDB-ID: #VU59161
Risk: Medium
CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-38542
CWE-ID:
CWE-77 - Command injection
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to inject arbitrary commands.
The vulnerability exists due to incorrect implementation of the STARTTLS command in the IMAP and POP3 servers. A remote attacker with ability to perform MitM attack can inject arbitrary IMAP or POP3 commands before successful initialization of the TLS session and execute these commands after the session was initialized.
Install updates from vendor's website.
Vulnerable software versionsApache James: 2.1 - 3.6.0
External linkshttp://seclists.org/oss-sec/2022/q1/1
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Path traversal
EUVDB-ID: #VU59160
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-2021-40525
CWE-ID:
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences within the Sieve file storage implementation. A remote user can send a specially crafted request and read or write arbitrary files on the system.
MitigationInstall update from vendor's website.
Vulnerable software versionsApache James: 2.1 - 3.6.0
External linkshttp://seclists.org/oss-sec/2022/q1/4
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Incorrect Regular Expression
EUVDB-ID: #VU59154
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-40110
CWE-ID:
CWE-185 - Incorrect Regular Expression
Exploit availability: No
DescriptionThe vulnerability allows a remote user to perform a denial of service attack.
The vulnerability exists due to improper input validation when parsing IMAP LIST commands. A remote user can send a specially crafted IMAP command to the server and perform a regular expression denial of service (ReDoS).
Install updates from vendor's website.
Vulnerable software versionsApache James: 2.1 - 3.6.0
External linkshttp://seclists.org/oss-sec/2022/q1/2
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
