Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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.

Published

2020-05-18T14:15:11.717

Last Modified

2024-11-21T04:56:27.067

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-476

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	dovecot	dovecot	< 2.3.10.1	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.html ([email protected])
http://packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-Dereference-Denial-Of-Service.html ([email protected])
http://seclists.org/fulldisclosure/2020/May/37 Exploit, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2020/05/18/1 Mailing List, Third Party Advisory ([email protected])
https://dovecot.org/security Vendor Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/ ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/ ([email protected])
https://usn.ubuntu.com/4361-1/ ([email protected])
https://www.debian.org/security/2020/dsa-4690 ([email protected])
https://www.openwall.com/lists/oss-security/2020/05/18/1 Mailing List, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.html (af854a3a-2127-422b-91ae-364da2661108)
http://packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-Dereference-Denial-Of-Service.html (af854a3a-2127-422b-91ae-364da2661108)
http://seclists.org/fulldisclosure/2020/May/37 Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2020/05/18/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://dovecot.org/security Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/ (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4361-1/ (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2020/dsa-4690 (af854a3a-2127-422b-91ae-364da2661108)
https://www.openwall.com/lists/oss-security/2020/05/18/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)