Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2016-5418 |
CWE-ID | CWE-19 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
libarchive Client/Desktop applications / Software for archiving |
Vendor | libarchive |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU33271
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-5418
CWE-ID:
CWE-19 - Data Handling
Exploit availability: No
DescriptionThe vulnerability allows a remote non-authenticated attacker to manipulate data.
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.
MitigationInstall update from vendor's website.
Vulnerable software versionslibarchive: 3.0.0 - 3.2.0
External linkshttp://rhn.redhat.com/errata/RHSA-2016-1844.html
http://rhn.redhat.com/errata/RHSA-2016-1850.html
http://www.openwall.com/lists/oss-security/2016/08/09/2
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
http://www.securityfocus.com/bid/93165
http://access.redhat.com/errata/RHSA-2016:1852
http://access.redhat.com/errata/RHSA-2016:1853
http://bugzilla.redhat.com/show_bug.cgi?id=1362601
http://gist.github.com/anonymous/e48209b03f1dd9625a992717e7b89c4f
http://github.com/libarchive/libarchive/commit/dfd6b54ce33960e420fb206d8872fb759b577ad9
http://github.com/libarchive/libarchive/issues/746
http://security.gentoo.org/glsa/201701-03
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to open a a specially crafted archive.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.