CVE-2015-5313

Publication date 18 December 2015

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libvirt	15.10 wily	Fixed 1.2.16-2ubuntu11.15.10.2
	15.04 vivid	Fixed 1.2.12-0ubuntu14.4
	14.04 LTS trusty	Fixed 1.2.2-0ubuntu13.1.16
	12.04 LTS precise	Not affected

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libvirt	Upstream: https://libvirt.org/git/?p=libvirt.git;a=commit;h=034e47c338b13a95cf02106a3af912c1c5f818d7

Severity score breakdown

Parameter	Value
Base score	2.5 · Low
Attack vector	Local
Attack complexity	High
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

References

Related Ubuntu Security Notices (USN)

USN-2867-1
libvirt vulnerabilities
12 January 2016