CVE-2016-5418

Public Exploit

Description

The sandboxing code in libarchive 3.2.0 and earlier mishandles hardlink archive entries of non-zero data size, which might allow remote attackers to write to arbitrary files via a crafted archive file.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 5.22% Top 15%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1362601 third party advisory vdb entry issue tracking
https://access.redhat.com/errata/RHSA-2016:1852 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2016:1853 third party advisory vendor advisory
https://github.com/libarchive/libarchive/commit/dfd6b54ce33960e420fb206d8872fb759b577ad9 patch
http://rhn.redhat.com/errata/RHSA-2016-1844.html third party advisory vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html third party advisory
https://gist.github.com/anonymous/e48209b03f1dd9625a992717e7b89c4f exploit technical description
https://github.com/libarchive/libarchive/issues/746 patch exploit
http://rhn.redhat.com/errata/RHSA-2016-1850.html third party advisory vendor advisory
https://security.gentoo.org/glsa/201701-03 vendor advisory
http://www.securityfocus.com/bid/93165 vdb entry
http://www.openwall.com/lists/oss-security/2016/08/09/2 mailing list exploit technical description

Frequently Asked Questions

What is the severity of CVE-2016-5418?
CVE-2016-5418 has been scored as a high severity vulnerability.
How to fix CVE-2016-5418?
To fix CVE-2016-5418, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-5418 being actively exploited in the wild?
It is possible that CVE-2016-5418 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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