CVE-2015-5313 Information

Description

Directory traversal vulnerability in the virStorageBackendFileSystemVolCreate function in storage/storage_backend_fs.c in libvirt when fine-grained Access Control Lists (ACL) are in effect allows local users with storage_vol:create ACL but not domain:write permission to write to arbitrary files via a .. (dot dot) in a volume name.

CVSS Vector

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

Reference

http://libvirt.org/git/?p=libvirt.git;a=commit;h=034e47c338b13a95cf02106a3af912c1c5f818d7 http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174404.html http://rhn.redhat.com/errata/RHSA-2016-2577.html http://security.libvirt.org/2015/0004.html http://www.securityfocus.com/bid/90913 https://security.gentoo.org/glsa/201612-10 https://www.redhat.com/archives/libvir-list/2015-December/msg00473.html

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

NONE

Base Severity

2.5