Executive Summary

Informations
Name CVE-2021-3657 First vendor Publication 2022-02-18
Vendor Cve Last vendor Modification 2022-12-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 9.8
Base Score 9.8 Environmental Score 9.8
impact SubScore 5.9 Temporal Score 9.8
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A flaw was found in mbsync versions prior to 1.4.4. Due to inadequate handling of extremely large (>=2GiB) IMAP literals, malicious or compromised IMAP servers, and hypothetically even external email senders, could cause several different buffer overflows, which could conceivably be exploited for remote code execution.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3657

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 14
Os 1
Os 1
Os 1

Sources (Detail)

Source Url
GENTOO https://security.gentoo.org/glsa/202208-15
MISC https://bugzilla.redhat.com/show_bug.cgi?id=2028932
https://www.openwall.com/lists/oss-security/2021/12/03/1
MLIST https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html

Alert History

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Date Informations
2023-01-04 12:59:46
  • Multiple Updates
2022-10-26 17:27:38
  • Multiple Updates
2022-10-19 02:00:39
  • Multiple Updates
2022-08-11 09:27:31
  • Multiple Updates
2022-07-01 21:27:28
  • Multiple Updates
2022-03-03 21:23:03
  • Multiple Updates
2022-02-18 21:22:52
  • First insertion