CVE-2016-4809

Name: CVE-2016-4809
Creator: NVD / NIST
Published: 2016-09-21T14:25:05.61+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.68%

Last modified Jun 17, 2026

CVE-2016-4809 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 4.68% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

4.68%

90.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Redhat	Enterprise Linux Desktop	6.0
Redhat	Enterprise Linux Hpc Node	6.0
Redhat	Enterprise Linux Server	6.0
Redhat	Enterprise Linux Workstation	6.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Hpc Node	7.0
Redhat	Enterprise Linux Hpc Node Eus	7.2
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	7.2
Redhat	Enterprise Linux Server Eus	7.2
Redhat	Enterprise Linux Workstation	7.0
Oracle	Linux	6
Oracle	Linux	7
Libarchive	Libarchive	<= 3.2.0

References

http://rhn.redhat.com/errata/RHSA-2016-1844.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1850.htmlThird Party Advisory
http://www.debian.org/security/2016/dsa-3657
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlThird Party Advisory
http://www.securityfocus.com/bid/91813Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1347084Issue Tracking
https://github.com/libarchive/libarchive/commit/fd7e0c02Issue Tracking, Patch
https://github.com/libarchive/libarchive/issues/705Issue Tracking, Patch
https://security.gentoo.org/glsa/201701-03
http://rhn.redhat.com/errata/RHSA-2016-1844.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1850.htmlThird Party Advisory
http://www.debian.org/security/2016/dsa-3657
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlThird Party Advisory
http://www.securityfocus.com/bid/91813Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1347084Issue Tracking
https://github.com/libarchive/libarchive/commit/fd7e0c02Issue Tracking, Patch
https://github.com/libarchive/libarchive/issues/705Issue Tracking, Patch
https://security.gentoo.org/glsa/201701-03

Timeline

Published: Sep 21, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-4809?

How severe is CVE-2016-4809?

Severity scoring for CVE-2016-4809 is pending analysis. The EPSS model estimates a 4.68% probability of exploitation in the next 30 days.

How do I fix CVE-2016-4809?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-4809?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST