High severity · published May 18, 2020
CVE-2020-10957
In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp
7.5
CVSS
7.2%
EPSS
No
On KEV
Description
In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)7.2% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DO
Dovecot · Dovecot
before 2.3.10.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-10957
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-10957
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.html
packetstormsecurity.com
http://packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-Dereference-Denial-Of-Service.html
Exploit
http://seclists.org/fulldisclosure/2020/May/37
Mailing List
http://www.openwall.com/lists/oss-security/2020/05/18/1
Vendor Advisory
https://dovecot.org/security
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/
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