Debian Security Bug TrackerDEBIANCVE:CVE-2020-7957CVE-2020-7957
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS
Percentile
52.3%
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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | dovecot | < 1:2.3.19.1+dfsg1-2.1 | dovecot_1:2.3.19.1+dfsg1-2.1_all.deb |
| Debian | 11 | all | dovecot | < 1:2.3.13+dfsg1-2+deb11u1 | dovecot_1:2.3.13+dfsg1-2+deb11u1_all.deb |
| Debian | 999 | all | dovecot | < 1:2.3.21+dfsg1-3 | dovecot_1:2.3.21+dfsg1-3_all.deb |
| Debian | 13 | all | dovecot | < 1:2.3.21+dfsg1-3 | dovecot_1:2.3.21+dfsg1-3_all.deb |
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS
Percentile
52.3%