Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2020-24386 CVE-2020-25275 |
CWE-ID | CWE-200 CWE-20 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
dovecot (Debian package) Operating systems & Components / Operating system package or component |
Vendor | Debian |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU49237
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-24386
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote user to gain access to sensitive information.
The vulnerability exists due to an error, related to IMAP hibernation. A remote user can run a specially crafted command to discover system directory structure and access emails of other users.
Update dovecot package to version 1:2.3.4.1-5+deb10u5.
Vulnerable software versionsdovecot (Debian package): 1:2.3.4.1-1 - 2.3.4.1-5+deb10u4
External linkshttp://www.debian.org/security/2021/dsa-4825
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.
EUVDB-ID: #VU49238
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-25275
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when processing messages with more than 10 000 MIME parts. A remote attacker can send a specially crafted message to the application and perform a denial of service (DoS) attack.
Note, this vulnerability was introduced by the fix for #VU45671.
MitigationUpdate dovecot package to version 1:2.3.4.1-5+deb10u5.
Vulnerable software versionsdovecot (Debian package): 1:2.3.4.1-1 - 2.3.4.1-5+deb10u4
External linkshttp://www.debian.org/security/2021/dsa-4825
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.