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Withdrawn Advisory: Out-of-bounds Read can lead to client side denial of service

High severity GitHub Reviewed Published Jul 23, 2022 to the GitHub Advisory Database • Updated May 6, 2024
Withdrawn This advisory was withdrawn on May 6, 2024

Package

gomod github.com/caddyserver/caddy (Go)

Affected versions

< 2.5.2

Patched versions

2.5.2

Description

Withdrawn Advisory

This advisory has been withdrawn because it is a bug, not a vulnerability. According to the maintainer, the bug only affects the client side of the request and cannot cause a denial of service on the server.

Original Description

An out-of-bounds read in the rewrite function at /modules/caddyhttp/rewrite/rewrite.go in Caddy v2.5.1 allows attackers to cause a Denial of Service (DoS) on the client side via a crafted URI.

References

Published by the National Vulnerability Database Jul 22, 2022
Published to the GitHub Advisory Database Jul 23, 2022
Reviewed Jul 27, 2022
Withdrawn May 6, 2024
Last updated May 6, 2024

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

0.081%
(36th percentile)

Weaknesses

CVE ID

CVE-2022-34037

GHSA ID

GHSA-m7gr-5w5g-36jf

Source code

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