CVE-2020-7957
MEDIUM
5.3
CVSS Score
Published: February 12, 2020 at 04:50 PM UTC
Updated: June 17, 2026 at 03:25 AM UTC
2 products affected across 2 vendorsFedoraDovecot
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Severity
MEDIUM5.3
Exploit prediction
EPSS 2%
Description
The IMAP and LMTP components in Dovecot 2.3.9 before 2.3.9.3 mishandle snippet generation when many characters must be read to compute the snippet and a trailing > character exists. This causes a denial of service in which the recipient cannot read all of their messages.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://dovecot.org/pipermail/dovecot-news/2020-February/000430.html
- https://dovecot.org/security
- 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/
References (5)
x_refsource_CONFIRMExploitMailing ListThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2020/02/12/2x_refsource_CONFIRMExploitMailing ListVendor Advisory
Source: [email protected]
https://dovecot.org/pipermail/dovecot-news/2020-February/000430.htmlVendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XYT55WH372BJOXCJRKBDIFGBMPVOIDT/Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJXHOUT3FH2DJNMACSX4GHPP4MUV4UKA/CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- LOW
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-20
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