CVE-2025-5915

Libarchive: heap buffer over read in copy_from_lzss_window() at archive_read_support_format_rar.c

Severity Score

3.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

A vulnerability has been identified in the libarchive library. This flaw can lead to a heap buffer over-read due to the size of a filter block potentially exceeding the Lempel-Ziv-Storer-Schieber (LZSS) window. This means the library may attempt to read beyond the allocated memory buffer, which can result in unpredictable program behavior, crashes (denial of service), or the disclosure of sensitive information from adjacent memory regions.

Se ha identificado una vulnerabilidad en la librería libarchive. Esta falla puede provocar una sobrelectura del búfer de memoria dinámica (heap buffer) debido a que el tamaño de un bloque de filtro puede exceder la ventana Lempel-Ziv-Storer-Schieber (LZSS). Esto significa que la librería podría intentar leer más allá del búfer de memoria asignado, lo que puede provocar un comportamiento impredecible del programa, fallos (denegación de servicio) o la divulgación de información confidencial de regiones de memoria adyacentes.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

Low

Attack Vector

Local

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2025-06-09 CVE Reserved
2025-06-09 CVE Published
2025-06-10 CVE Updated
2025-06-10 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-122: Heap-based Buffer Overflow

CAPEC

References (4)

URL	Tag	Source
https://access.redhat.com/security/cve/CVE-2025-5915	Vdb Entry
https://bugzilla.redhat.com/show_bug.cgi?id=2370865	Issue Tracking
https://github.com/libarchive/libarchive/pull/2599
https://github.com/libarchive/libarchive/releases/tag/v3.8.0

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Red Hat Search vendor "Red Hat"		Enterprise Linux Search vendor "Red Hat" for product "Enterprise Linux"				*		-		Affected
Redhat Search vendor "Redhat"		Openshift Search vendor "Redhat" for product "Openshift"				*		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				*		-		Affected