CVE-2017-6507
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.
Does this matter?
Lower severity and a low EPSS score (1.59%). Track it; it rarely justifies an emergency change on its own.
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 3.0
- 5.9 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 1.59% probability · 76th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-269
- Affected
- apparmor/apparmor · canonical/ubuntu core · canonical/ubuntu touch
- Source
- cve@mitre.org
EPSS 1.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://bazaar.launchpad.net/~apparmor-dev/apparmor/master/revision/3647Issue Tracking, Patch, Third Party Advisory
- http://bazaar.launchpad.net/~apparmor-dev/apparmor/master/revision/3648Issue Tracking, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/97223
- https://bugs.launchpad.net/apparmor/+bug/1668892Issue Tracking, Patch, Third Party Advisory
- https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-6507.htmlThird Party Advisory
- http://bazaar.launchpad.net/~apparmor-dev/apparmor/master/revision/3647Issue Tracking, Patch, Third Party Advisory
- http://bazaar.launchpad.net/~apparmor-dev/apparmor/master/revision/3648Issue Tracking, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/97223
- https://bugs.launchpad.net/apparmor/+bug/1668892Issue Tracking, Patch, Third Party Advisory
- https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-6507.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.