Bug 799902 - (CVE-2012-1101) CVE-2012-1101 systemd: Units that failed to load were not cleaned up leading to DoS
CVE-2012-1101 systemd: Units that failed to load were not cleaned up leading ...
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
: ---
: ---
Assigned To: Red Hat Product Security
impact=low,public=20120304,reported=2...
: Security
Depends On: 680122
Blocks:
  Show dependency treegraph
 
Reported: 2012-03-05 06:42 EST by Jan Lieskovsky
Modified: 2015-07-31 02:48 EDT (History)
5 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2012-03-05 06:52:26 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:


Attachments (Terms of Use)

  None (edit)
Description Jan Lieskovsky 2012-03-05 06:42:18 EST
A security flaw was found in the way systemd loaded configuration for non-existent service(s). A local user could use this flaw to create entry in systemd's service list for that service via 'systemctl status non-existent.service', potentially leading to denial of service (failure of login procedure) when the list of previously loaded units reached upper limit.

References:
[1] https://bugzilla.redhat.com/show_bug.cgi?id=680122
[2] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=662029
[3] https://bugzilla.novell.com/show_bug.cgi?id=750397
[4] http://seclists.org/oss-sec/2012/q1/537

Upstream patch:
[5] http://cgit.freedesktop.org/systemd/systemd/commit/?id=9a46fc3b9014de1bf0ed1f3004a536b08a19ebb3
Comment 1 Jan Lieskovsky 2012-03-05 06:52:26 EST
This issue did NOT affect the current versions (systemd-26-16.fc15 and systemd-37-13.fc16 respectively) of the systemd package, as being actually present within Fedora release of 15 and 16.

Note You need to log in before you can comment on or make changes to this bug.