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ubuntucveUbuntu.comUB:CVE-2020-7957
HistoryFeb 12, 2020 - 12:00 a.m.

CVE-2020-7957

2020-02-1200:00:00
ubuntu.com
ubuntu.com
11

CVSS2

5

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

5.3

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

0.002

Percentile

52.3%

JSON

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.

Notes

Author Note
mdeslaur 2.3.9 only introduced by 74063ed8219d055489d5233b0c02a59886d2078c

Related

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fedora 2
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Design/Logic Flaw
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Dovecot 2.3.9 < 2.3.9.3 Multiple Vulnerabilities
2020-02-13 00:00:00
Fedora: Security Advisory for dovecot (FEDORA-2020-10a58fda28)
2020-02-21 00:00:00
Fedora: Security Advisory for dovecot (FEDORA-2020-0e6a67af5a)
2020-02-21 00:00:00
nessus
nessus
Fedora 30 : 1:dovecot (2020-0e6a67af5a)
2020-02-20 00:00:00
Fedora 31 : 1:dovecot (2020-10a58fda28)
2020-02-20 00:00:00
archlinux
archlinux
[ASA-202002-6] dovecot: denial of service
2020-02-12 00:00:00
fedora
fedora
[SECURITY] Fedora 31 Update: dovecot-2.3.9.3-1.fc31
2020-02-20 05:05:21
[SECURITY] Fedora 30 Update: dovecot-2.3.9.3-1.fc30
2020-02-20 04:46:54

CVSS2

5

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

5.3

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

0.002

Percentile

52.3%

JSON
Related for UB:CVE-2020-7957
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