VulnerabilityModified
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 submission-login infinite loop.
HIGH 7.5EPSS 51.3%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 51.3%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 51.26% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-835
- Affected
- dovecot/dovecot · fedoraproject/fedora
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2020/02/12/1Mailing List, Third Party Advisory
- https://dovecot.org/pipermail/dovecot-news/2020-February/000431.htmlMailing List, Vendor Advisory
- https://dovecot.org/securityVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XYT55WH372BJOXCJRKBDIFGBMPVOIDT/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJXHOUT3FH2DJNMACSX4GHPP4MUV4UKA/
- http://www.openwall.com/lists/oss-security/2020/02/12/1Mailing List, Third Party Advisory
- https://dovecot.org/pipermail/dovecot-news/2020-February/000431.htmlMailing List, Vendor Advisory
- https://dovecot.org/securityVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XYT55WH372BJOXCJRKBDIFGBMPVOIDT/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJXHOUT3FH2DJNMACSX4GHPP4MUV4UKA/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.