Vulnerability Details : 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.
Vulnerability category: Memory Corruption
Products affected by CVE-2020-10957
- cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-10957
1.45%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 87 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-10957
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
MITRE | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2020-10957
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-10957
-
https://www.openwall.com/lists/oss-security/2020/05/18/1
oss-security - Multiple vulnerabilities in Dovecot IMAP serverMailing List;Third Party Advisory
-
https://usn.ubuntu.com/4361-1/
USN-4361-1: Dovecot vulnerabilities | Ubuntu security notices
-
http://www.openwall.com/lists/oss-security/2020/05/18/1
oss-security - Multiple vulnerabilities in Dovecot IMAP serverMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/
[SECURITY] Fedora 32 Update: dovecot-2.3.10.1-1.fc32 - package-announce - Fedora Mailing-Lists
-
https://dovecot.org/security
SecurityVendor Advisory
-
https://www.debian.org/security/2020/dsa-4690
Debian -- Security Information -- DSA-4690-1 dovecot
-
http://packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-Dereference-Denial-Of-Service.html
Open-Xchange Dovecot 2.3.10 Null Pointer Dereference / Denial Of Service ≈ Packet Storm
-
http://seclists.org/fulldisclosure/2020/May/37
Full Disclosure: Multiple vulnerabilities in Dovecot IMAP serverExploit;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.html
[security-announce] openSUSE-SU-2020:0720-1: important: Security update
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/
[SECURITY] Fedora 31 Update: dovecot-2.3.10.1-1.fc31 - package-announce - Fedora Mailing-Lists
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