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Vulnerability Details :

CVE-2020-7957

Summary
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At-12 Feb, 2020 | 16:50
Updated At-04 Aug, 2024 | 09:48
Rejected At-
Credits

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mitre
Assigner Org ID:8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At:12 Feb, 2020 | 16:50
Updated At:04 Aug, 2024 | 09:48
Rejected At:
▼CVE Numbering Authority (CNA)

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.

Affected Products
Vendor
n/a
Product
n/a
Versions
Affected
  • n/a
Problem Types
TypeCWE IDDescription
textN/An/a
Type: text
CWE ID: N/A
Description: n/a
Metrics
VersionBase scoreBase severityVector
3.03.1LOW
CVSS:3.0/AC:H/AV:N/A:L/C:N/I:N/PR:N/S:U/UI:R
Version: 3.0
Base score: 3.1
Base severity: LOW
Vector:
CVSS:3.0/AC:H/AV:N/A:L/C:N/I:N/PR:N/S:U/UI:R
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://dovecot.org/security
x_refsource_MISC
http://www.openwall.com/lists/oss-security/2020/02/12/2
x_refsource_CONFIRM
https://dovecot.org/pipermail/dovecot-news/2020-February/000430.html
x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XYT55WH372BJOXCJRKBDIFGBMPVOIDT/
vendor-advisory
x_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJXHOUT3FH2DJNMACSX4GHPP4MUV4UKA/
vendor-advisory
x_refsource_FEDORA
Hyperlink: https://dovecot.org/security
Resource:
x_refsource_MISC
Hyperlink: http://www.openwall.com/lists/oss-security/2020/02/12/2
Resource:
x_refsource_CONFIRM
Hyperlink: https://dovecot.org/pipermail/dovecot-news/2020-February/000430.html
Resource:
x_refsource_CONFIRM
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XYT55WH372BJOXCJRKBDIFGBMPVOIDT/
Resource:
vendor-advisory
x_refsource_FEDORA
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJXHOUT3FH2DJNMACSX4GHPP4MUV4UKA/
Resource:
vendor-advisory
x_refsource_FEDORA
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://dovecot.org/security
x_refsource_MISC
x_transferred
http://www.openwall.com/lists/oss-security/2020/02/12/2
x_refsource_CONFIRM
x_transferred
https://dovecot.org/pipermail/dovecot-news/2020-February/000430.html
x_refsource_CONFIRM
x_transferred
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XYT55WH372BJOXCJRKBDIFGBMPVOIDT/
vendor-advisory
x_refsource_FEDORA
x_transferred
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJXHOUT3FH2DJNMACSX4GHPP4MUV4UKA/
vendor-advisory
x_refsource_FEDORA
x_transferred
Hyperlink: https://dovecot.org/security
Resource:
x_refsource_MISC
x_transferred
Hyperlink: http://www.openwall.com/lists/oss-security/2020/02/12/2
Resource:
x_refsource_CONFIRM
x_transferred
Hyperlink: https://dovecot.org/pipermail/dovecot-news/2020-February/000430.html
Resource:
x_refsource_CONFIRM
x_transferred
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XYT55WH372BJOXCJRKBDIFGBMPVOIDT/
Resource:
vendor-advisory
x_refsource_FEDORA
x_transferred
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJXHOUT3FH2DJNMACSX4GHPP4MUV4UKA/
Resource:
vendor-advisory
x_refsource_FEDORA
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@mitre.org
Published At:12 Feb, 2020 | 17:15
Updated At:07 Nov, 2023 | 03:26

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.15.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Secondary3.03.1LOW
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
Primary2.05.0MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
Type: Primary
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Type: Secondary
Version: 3.0
Base score: 3.1
Base severity: LOW
Vector:
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
Type: Primary
Version: 2.0
Base score: 5.0
Base severity: MEDIUM
Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P
CPE Matches
Dovecot
dovecot
>>dovecot>>Versions from 2.3.9(inclusive) to 2.3.9.3(exclusive)
cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*
Fedora Project
fedoraproject
>>fedora>>30
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
Fedora Project
fedoraproject
>>fedora>>31
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-20Primarynvd@nist.gov
CWE ID: CWE-20
Type: Primary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
http://www.openwall.com/lists/oss-security/2020/02/12/2cve@mitre.org
Exploit
Mailing List
Third Party Advisory
https://dovecot.org/pipermail/dovecot-news/2020-February/000430.htmlcve@mitre.org
Exploit
Mailing List
Vendor Advisory
https://dovecot.org/securitycve@mitre.org
Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XYT55WH372BJOXCJRKBDIFGBMPVOIDT/cve@mitre.org
N/A
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJXHOUT3FH2DJNMACSX4GHPP4MUV4UKA/cve@mitre.org
N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2020/02/12/2
Source: cve@mitre.org
Resource:
Exploit
Mailing List
Third Party Advisory
Hyperlink: https://dovecot.org/pipermail/dovecot-news/2020-February/000430.html
Source: cve@mitre.org
Resource:
Exploit
Mailing List
Vendor Advisory
Hyperlink: https://dovecot.org/security
Source: cve@mitre.org
Resource:
Vendor Advisory
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XYT55WH372BJOXCJRKBDIFGBMPVOIDT/
Source: cve@mitre.org
Resource: N/A
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJXHOUT3FH2DJNMACSX4GHPP4MUV4UKA/
Source: cve@mitre.org
Resource: N/A

Change History

0
Information is not available yet

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