CVE-2020-28018

View on CVE.org

Published May 6, 2021 CVSS 3.1 · 9.8 Critical EPSS 56.5% KEV · Not listed

Description

Exim 4 before 4.94.2 allows Use After Free in smtp_reset in certain situations that may be common for builds with OpenSSL.

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

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 solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
Ubuntu USN	USN-4934-1	Exim 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: 56.5% (56.475% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
http://www.openwall.com/lists/oss-security/2021/05/11/14
http://www.openwall.com/lists/oss-security/2021/05/11/15
http://www.openwall.com/lists/oss-security/2021/05/11/17
http://www.openwall.com/lists/oss-security/2021/05/11/5
http://www.openwall.com/lists/oss-security/2021/05/11/6
http://www.openwall.com/lists/oss-security/2021/05/12/2
http://www.openwall.com/lists/oss-security/2021/05/12/3
https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28018-OCORK.txt

History

No history.

Subscriptions

Exim Exim

Weaknesses

CWE-416

Sources

CVE record Updated: Aug 4, 2024, 4:25 PM

Status: PUBLISHED
Assigner: mitre
Published: May 6, 2021, 3:58 AM
Updated: Aug 4, 2024, 4:25 PM
Reserved: Oct 30, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:10 AM

Status: Modified
Published: May 6, 2021, 1:15 PM
Modified: Jun 17, 2026, 3:10 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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