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CVE-2017-11565

Published: Jul 23, 2017Updated: May 13, 2026 Sources: CVE List NVD BDUNVD-CWE-noinfo
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.2%
Top 37.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

debian/tor.init in the Debian tor_0.2.9.11-1~deb9u1 package for Tor was designed to execute aa-exec from the standard system pathname if the apparmor package is installed, but implements this incorrectly (with a wrong assumption that the specific pathname would remain the same forever), which allows attackers to bypass intended AppArmor restrictions by leveraging the silent loss of this protection mechanism. NOTE: this does not affect systems, such as default Debian stretch installations, on which Tor startup relies on a systemd unit file (instead of this tor.init script).

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

NVD-CWE-noinfo

Affected Products

n/an/a
TorThe Tor Project, Inc.
Mixed
Security Products / secure-gateway-vpn
tordebian
On-prem
Operating Systems / linux-distro
the tor project, inc.oss-projectUSSecurity Productsaka tor, thetorproject
debianoss-projectGBOperating Systemsaka debian gnu/linux

Exploitability

Official Patch Available

References

http://www.securityfocus.com/bid/99933
securityfocus.com
https://bugs.debian.org/869153
bugs.debian.org
http://www.securityfocus.com/bid/99933
securityfocus.com

Timeline

Published
Jul 23, 2017
Last Updated
May 13, 2026

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