Allocation of Resources Without Limits or Throttling Affecting dovecot package, versions [,2.3.21.1)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.04% (11th percentile)

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  • Snyk ID SNYK-UNMANAGED-DOVECOT-7725425
  • published 21 Aug 2024
  • disclosed 15 Aug 2024
  • credit Unknown

How to fix?

Upgrade dovecot to version 2.3.21.1 or higher.

Overview

Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to the parsing of very large headers. An attacker can cause resource exhaustion by sending specially crafted messages with excessively large headers.

CVSS Scores

version 4.0
version 3.1
Expand this section

Snyk

Recommended
8.7 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Attack Requirements (AT)
    None
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Confidentiality (VC)
    None
  • Integrity (VI)
    None
  • Availability (VA)
    High
  • Confidentiality (SC)
    None
  • Integrity (SI)
    None
  • Availability (SA)
    None