openEuler update for dovecot
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2020-25275 CVE-2020-24386 |
| CWE-ID | CWE-20 CWE-200 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
openEuler Operating systems & Components / Operating system dovecot-debugsource Operating systems & Components / Operating system package or component dovecot-debuginfo Operating systems & Components / Operating system package or component dovecot-devel Operating systems & Components / Operating system package or component dovecot-help Operating systems & Components / Operating system package or component dovecot Operating systems & Components / Operating system package or component |
| Vendor | openEuler |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Input validation error
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.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS - 20.03 LTS SP1
dovecot-debugsource: before 2.3.10.1-4
dovecot-debuginfo: before 2.3.10.1-4
dovecot-devel: before 2.3.10.1-4
dovecot-help: before 2.3.10.1-4
dovecot: before 2.3.10.1-4
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1042
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) Information disclosure
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.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS - 20.03 LTS SP1
dovecot-debugsource: before 2.3.10.1-4
dovecot-debuginfo: before 2.3.10.1-4
dovecot-devel: before 2.3.10.1-4
dovecot-help: before 2.3.10.1-4
dovecot: before 2.3.10.1-4
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1042
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.
