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CVE-2023-27530

Good to know:

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Date: March 10, 2023

A DoS vulnerability exists in Rack <v3.0.4.2, <v2.2.6.3, <v2.1.4.3 and <v2.0.9.3 within in the Multipart MIME parsing code in which could allow an attacker to craft requests that can be abuse to cause multipart parsing to take longer than expected.

Language: Ruby

Severity Score

Related Resources (10)

https://lists.debian.org/debian-lts-announce/2023/04/msg00017.html
https://security.netapp.com/advisory/ntap-20231208-0015/
https://nvd.nist.gov/vuln/detail/CVE-2023-27530
https://discuss.rubyonrails.org/t/cve-2023-27530-possible-dos-vulnerability-in-multipart-mime-parsing/82388
https://www.debian.org/security/2023/dsa-5530
https://access.redhat.com/security/cve/CVE-2023-27530
https://github.com/rubysec/ruby-advisory-db/commit/b2adb3c9478ddf4bb9732cd1003ceabcfdcedb90
https://github.com/rack/rack/commit/8e8869d625e73e16b576b6d31b50208e9ec8002f
https://security-tracker.debian.org/tracker/CVE-2023-27530
https://www.mend.io/vulnerability-database/CVE-2023-27530

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

Allocation of Resources Without Limits or Throttling

CWE-770

Top Fix

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Upgrade to version rack - 2.0.9.3,2.1.4.3,2.2.6.3,3.0.4.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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