CVE-2021-20308

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Published Apr 5, 2021 CVSS 3.1 · 9.8 Critical EPSS 2.5% KEV · Not listed

Description

Integer overflow in the htmldoc 1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service that is similar to CVE-2017-9181.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

htmldoc

affected

Version	Status	Constraints
`htmldoc 1.9.11 and older`	affected	—

Configuration 1 [-]

cpe:2.3:a:htmldoc_project:htmldoc:*:*:*:*:*:*:*:*

Configuration 2 [-]

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
Debian DLA	DLA-2700-1	htmldoc security update
EUVD	EUVD-2021-7733	Integer overflow in the htmldoc 1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service that is similar to CVE-2017-9181.
Ubuntu USN	USN-7189-1	HTMLDOC vulnerabilities

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 2.5% (2.477% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://bugzilla.redhat.com/show_bug.cgi?id=1946289
https://github.com/michaelrsweet/htmldoc/issues/423
https://lists.debian.org/debian-lts-announce/2021/07/msg00000.html

History

No history.

Subscriptions

Debian Debian Linux

Htmldoc Project Htmldoc

Weaknesses

CWE-190

Sources

CVE record Updated: Aug 3, 2024, 5:37 PM

Status: PUBLISHED
Assigner: redhat
Published: Apr 5, 2021, 9:32 PM
Updated: Aug 3, 2024, 5:37 PM
Reserved: Dec 17, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:33 AM

Status: Modified
Published: Apr 5, 2021, 10:15 PM
Modified: Jun 17, 2026, 3:33 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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