High severity · published Feb 12, 2020
CVE-2020-7046
lib-smtp in submission-login and lmtp in Dovecot 2.3.9 before 2.3.9.3 mishandles truncated UTF-8 data in command parameters, as demonstrated by the unauthenticated triggering of a…
7.5
CVSS
51.3%
EPSS
No
On KEV
Description
lib-smtp in submission-login and lmtp in Dovecot 2.3.9 before 2.3.9.3 mishandles truncated UTF-8 data in command parameters, as demonstrated by the unauthenticated triggering of a submission-login infinite loop.
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)51.3% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DO
Dovecot · Dovecot
2.3.9 before 2.3.9.3 · source: NVD
FE
Fedora · Fedoraproject
30; 31 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-7046
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-7046
Mailing List
http://www.openwall.com/lists/oss-security/2020/02/12/1
Mailing List
https://dovecot.org/pipermail/dovecot-news/2020-February/000431.html
Vendor Advisory
https://dovecot.org/security
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XYT55WH372BJOXCJRKBDIFGBMPVOIDT/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJXHOUT3FH2DJNMACSX4GHPP4MUV4UKA/
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