PRIOn knowledge basePRION:CVE-2011-2189Design/Logic Flaw
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.8 Medium
AI Score
Confidence
Low
7.8 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
0.025 Low
EPSS
Percentile
89.9%
net/core/net_namespace.c in the Linux kernel 2.6.32 and earlier does not properly handle a high rate of creation and cleanup of network namespaces, which makes it easier for remote attackers to cause a denial of service (memory consumption) via requests to a daemon that requires a separate namespace per connection, as demonstrated by vsftpd.
| CPE | Name | Operator | Version |
|---|---|---|---|
| ubuntu_linux | eq | 10.10 | |
| ubuntu_linux | eq | 11.04 | |
| ubuntu_linux | eq | 11.10 | |
| ubuntu_linux | eq | 10.04 | |
| debian_linux | eq | 5.0 | |
| debian_linux | eq | 7.0 | |
| debian_linux | eq | 6.0 | |
| linux_kernel | le | 2.6.32 | |
| enterprise_linux | eq | 6.0 | |
| enterprise_mrg | eq | 2.0 |
References
bugs.debian.org/cgi-bin/bugreport.cgi?bug=629373
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2b035b39970740722598f7a9d548835f9bdd730f
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f875bae065334907796da12523f9df85c89f5712
ie.archive.ubuntu.com/linux/kernel/v2.6/ChangeLog-2.6.33
kerneltrap.org/mailarchive/git-commits-head/2009/12/8/15289
neil.brown.name/git?p=linux-2.6%3Ba=patch%3Bh=2b035b39970740722598f7a9d548835f9bdd730f
patchwork.ozlabs.org/patch/88217/
www.debian.org/security/2011/dsa-2305
www.openwall.com/lists/oss-security/2011/06/06/10
www.openwall.com/lists/oss-security/2011/06/06/20
www.ubuntu.com/usn/USN-1288-1
bugs.launchpad.net/ubuntu/+source/linux/+bug/720095
bugzilla.redhat.com/show_bug.cgi?id=711134
bugzilla.redhat.com/show_bug.cgi?id=711245
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.8 Medium
AI Score
Confidence
Low
7.8 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
0.025 Low
EPSS
Percentile
89.9%