Fedora 22 update for lxc

1) Link following

EUVDB-ID: #VU33647

Risk: Low

CVSSv4.0: 6.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2015-1335

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

The vulnerability allows a local non-authenticated attacker to execute arbitrary code.

lxc-start in lxc before 1.0.8 and 1.1.x before 1.1.4 allows local container administrators to escape AppArmor confinement via a symlink attack on a (1) mount target or (2) bind mount source.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 22

lxc: before 1.1.4-2.fc22

CPE2.3

• cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
• cpe:2.3:a:fedoraproject:lxc:*:*:*:*:*:fedora:*:*

External links

https://bodhi.fedoraproject.org/updates/FEDORA-2015-211974138f

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.