Bug 842424 (CVE-2012-3570) - CVE-2012-3570 dhcp: DoS in DHCPv6 due to error in handling malformed client identifiers
Summary: CVE-2012-3570 dhcp: DoS in DHCPv6 due to error in handling malformed client i...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2012-3570
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 842892
Blocks: 842431
TreeView+ depends on / blocked
 
Reported: 2012-07-23 20:25 UTC by Vincent Danen
Modified: 2023-05-11 19:27 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2019-06-10 10:58:48 UTC
Embargoed:

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Description Vincent Danen 2012-07-23 20:25:54 UTC 
An unexpected client identifier parameter can cause the ISC DHCP daemon to
segmentation fault when running in DHCPv6 mode, resulting in a denial of
service to further client requests. In order to exploit this condition, an
attacker must be able to send requests to the DHCP server.

ISC DHCP versions 4.2.x are vulnerable to this flaw; earlier versions are not affected.

Acknowledgements:

Upstream acknowledges Markus Hietava of Codenomicon CROSS project as the original reporter of this issue.
Comment 2 Vincent Danen 2012-07-23 20:33:15 UTC 
Statement:

Not vulnerable. This issue did not affect the versions of dhcp as shipped with Red Hat Enterprise Linux 5 and 6.
Comment 3 Vincent Danen 2012-07-24 20:35:01 UTC 
This is now public:

https://kb.isc.org/article/AA-00714
Comment 4 Vincent Danen 2012-07-24 20:37:26 UTC 
Created dhcp tracking bugs for this issue

Affects: fedora-all [bug 842892]
Comment 5 Fedora Update System 2012-08-01 18:28:05 UTC 
dhcp-4.2.4-9.P1.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 6 Fedora Update System 2012-08-06 07:50:28 UTC 
dhcp-4.2.3-11.P2.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.
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