CVE-2020-27788 - Vulnerability Details - OpenCVE

Description

An out-of-bounds read access vulnerability was discovered in UPX in PackLinuxElf64::canPack() function of p_lx_elf.cpp file. An attacker with a crafted input file could trigger this issue that could cause a crash leading to a denial of service.

Published: 2022-08-18

Score: 5.5 Medium

EPSS: < 1% Very Low

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

upx

affected

Version	Status	Constraints
`Fixed in v3.96.`	affected	—

Configuration 1 [-]

cpe:2.3:a:upx:upx:*:*:*:*:*:*:*:*

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
EUVD	EUVD-2020-20290	An out-of-bounds read access vulnerability was discovered in UPX in PackLinuxElf64::canPack() function of p_lx_elf.cpp file. An attacker with a crafted input file could trigger this issue that could cause a crash leading to a denial of service.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00049.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/upx/upx/commit/1bb93d4fce9f1d764ba57bf5ac154af515b3fc83
https://github.com/upx/upx/issues/332

History

Fri, 11 Apr 2025 12:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Upx Upx upx
CPEs	cpe:2.3:a:upx_project:upx::::::::	cpe:2.3:a:upx:upx::::::::
Vendors & Products	Upx Project Upx Project upx	Upx Upx upx

Subscriptions

Upx Upx

MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2022-08-18T19:05:00.000Z

Updated: 2024-08-04T16:25:42.939Z

Reserved: 2020-10-27T00:00:00.000Z

Link: CVE-2020-27788

Vulnrichment

No data.

NVD

Status : Modified

Published: 2022-08-18T20:15:08.947

Modified: 2025-04-11T12:27:55.013

Link: CVE-2020-27788

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-125

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