Libarchive: reading past eof may be triggered for piped file streams

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Summary

CVECVE-2025-5918
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-06-09 20:15:27 UTC
Updated2026-06-30 11:16:25 UTC
DescriptionA vulnerability has been identified in the libarchive library. This flaw can be triggered when file streams are piped into bsdtar, potentially allowing for reading past the end of the file. This out-of-bounds read can lead to unintended consequences, including unpredictable program behavior, memory corruption, or a denial-of-service condition.

Risk And Classification

Primary CVSS: v3.1 6.6 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H

EPSS: 0.003410000 probability, percentile 0.260530000 (date 2026-07-04)

Problem Types: CWE-125 | CWE-125 Out-of-bounds Read

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.6MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H
3.1[email protected]Secondary3.9LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L
3.1CNACVSS3.9LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Libarchive Libarchive All All All All
Operating System Redhat Enterprise Linux 6.0 All All All
Operating System Redhat Enterprise Linux 7.0 All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Operating System Redhat Enterprise Linux 9.0 All All All
Application Redhat Openshift Container Platform 4.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Enterprise Linux 10 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 6 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 7 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 8 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 9 Not specified Not specified
CNA Red Hat Red Hat OpenShift Container Platform 4 Not specified Not specified

References

ReferenceSourceLinkTags
github.com/libarchive/libarchive/releases/tag/v3.8.0 [email protected] github.com Release Notes
access.redhat.com/security/cve/CVE-2025-5918 [email protected] access.redhat.com Vendor Advisory
github.com/libarchive/libarchive/pull/2584 [email protected] github.com Patch
bugzilla.redhat.com/show_bug.cgi [email protected] bugzilla.redhat.com Issue Tracking
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
CNA2025-06-06T19:27:09.090ZReported to Red Hat.
CNA2025-05-20T00:00:00.000ZMade public.

Workarounds

CNA: Upgrade to libarchive version 3.8.0 or later, which includes important security fixes and stability improvements.

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