Medium severity · published Mar 24, 2017
CVE-2017-6507
An issue was discovered in AppArmor before 2.12
5.9
CVSS
1.6%
EPSS
No
On KEV
Description
An issue was discovered in AppArmor before 2.12. Incorrect handling of unknown AppArmor profiles in AppArmor init scripts, upstart jobs, and/or systemd unit files allows an attacker to possibly have increased attack surfaces of processes that were intended to be confined by AppArmor. This is due to the common logic to handle 'restart' operations removing AppArmor profiles that aren't found in the typical filesystem locations, such as /etc/apparmor.d/. Userspace projects that manage their own AppArmor profiles in atypical directories, such as what's done by LXD and Docker, are affected by this flaw in the AppArmor init script logic.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AP
Apparmor · Apparmor
through 2.11 · source: NVD
UC
Ubuntu Core · Canonical
15.04 · source: NVD
UT
Ubuntu Touch · Canonical
15.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-6507
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-6507
Issue Tracking
http://bazaar.launchpad.net/~apparmor-dev/apparmor/master/revision/3647
Issue Tracking
http://bazaar.launchpad.net/~apparmor-dev/apparmor/master/revision/3648
www.securityfocus.com
http://www.securityfocus.com/bid/97223
Issue Tracking
https://bugs.launchpad.net/apparmor/+bug/1668892
Third Party Advisory
https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-6507.html
