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Vulnerability record · CVE-2016-4809 · published 21 September 2016

CVE-2016-4809: Redhat enterprise linux desktop improper input validation vulnerability

Redhat · Enterprise Linux Desktop

The archive_read_format_cpio_read_header function in archive_read_support_format_cpio.c in libarchive before 3.2.1 allows remote attackers to cause a denial of service (application crash) via a CPIO archive with a large symlink.

7.5 CVSS 3.0 High EPSS 4.8% · top 8.4% CWE-20 · Improper input validation
7.5CVSS 3.0 base score, v2 5.0
4.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
9Affected product versions listed by NVD
18References
17 Jun 2026Last modified by NVD

Description

The archive_read_format_cpio_read_header function in archive_read_support_format_cpio.c in libarchive before 3.2.1 allows remote attackers to cause a denial of service (application crash) via a CPIO archive with a large symlink.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

9 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://rhn.redhat.com/errata/RHSA-2016-1844.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1850.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3657
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html Third Party Advisory
http://www.securityfocus.com/bid/91813 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1347084 Issue Tracking
https://github.com/libarchive/libarchive/commit/fd7e0c02 Issue TrackingPatch
https://github.com/libarchive/libarchive/issues/705 Issue TrackingPatch
https://security.gentoo.org/glsa/201701-03
http://rhn.redhat.com/errata/RHSA-2016-1844.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1850.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3657
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html Third Party Advisory
http://www.securityfocus.com/bid/91813 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1347084 Issue Tracking
https://github.com/libarchive/libarchive/commit/fd7e0c02 Issue TrackingPatch
https://github.com/libarchive/libarchive/issues/705 Issue TrackingPatch
https://security.gentoo.org/glsa/201701-03

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Source: NIST National Vulnerability Database (record CVE-2016-4809), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.