CVE-2020-28020 - Vulnerability Details - OpenCVE

Description

Exim 4 before 4.92 allows Integer Overflow to Buffer Overflow, in which an unauthenticated remote attacker can execute arbitrary code by leveraging the mishandling of continuation lines during header-length restriction.

Published: 2021-05-06

Score: 9.8 Critical

EPSS: 21.1% Moderate

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

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

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
Debian DLA	DLA-2650-1	exim4 security update
Ubuntu USN	USN-4934-1	Exim vulnerabilities
Ubuntu USN	USN-4934-2	Exim vulnerabilities

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.

The EPSS score is 0.21063.

Key SSVC decision points have not yet been added.

References

Link	Providers
http://www.openwall.com/lists/oss-security/2021/07/25/1
http://www.openwall.com/lists/oss-security/2021/08/03/1
https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28020-HSIZE.txt

History

No history.

Subscriptions

Exim Exim

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-05-06T04:10:36.000Z

Updated: 2024-08-04T16:25:43.972Z

Reserved: 2020-10-30T00:00:00.000Z

Link: CVE-2020-28020

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-05-06T13:15:09.613

Modified: 2024-11-21T05:22:13.213

Link: CVE-2020-28020

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-190

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