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golang.org/x/net/html Improper Validation of Array Index vulnerability

High severity GitHub Reviewed Published May 13, 2022 to the GitHub Advisory Database • Updated May 20, 2024

Package

gomod golang.org/x/net (Go)

Affected versions

< 0.0.0-20190125002852-4b62a64f59f7

Patched versions

0.0.0-20190125002852-4b62a64f59f7

Description

The html package (aka x/net/html) through 2018-09-25 in Go mishandles , leading to a "panic: runtime error" (index out of range) in (*insertionModeStack).pop in node.go, called from inHeadIM, during an html.Parse call.

References

Published by the National Vulnerability Database Oct 1, 2018
Published to the GitHub Advisory Database May 13, 2022
Reviewed Feb 8, 2023
Last updated May 20, 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

0.236%
(62nd percentile)

Weaknesses

CVE ID

CVE-2018-17848

GHSA ID

GHSA-mv93-wvcp-7m7r

Source code

No known source code
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