Vulnerability CVE-2014-7284


Published: 2014-10-13

Description:
The net_get_random_once implementation in net/core/utils.c in the Linux kernel 3.13.x and 3.14.x before 3.14.5 on certain Intel processors does not perform the intended slow-path operation to initialize random seeds, which makes it easier for remote attackers to spoof or disrupt IP communication by leveraging the predictability of TCP sequence numbers, TCP and UDP port numbers, and IP ID values.

Type:

CWE-200

(Information Exposure)

Vendor: Linux
Product: Linux kernel 
Version:
3.14.4
3.14.3
3.14.2
3.14.1
3.13.9
3.13.8
3.13.7
3.13.6
3.13.5
3.13.4
3.13.3
3.13.2
3.13.11
3.13.10
3.13.1

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.4/10
4.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
Partial

 References:
https://web.archive.org/web/20141002163852/http://secondlookforensics.com/ngro-linux-kernel-bug/
https://github.com/torvalds/linux/commit/3d4405226d27b3a215e4d03cfa51f536244e5de7
https://bugzilla.redhat.com/show_bug.cgi?id=1148788
http://www.openwall.com/lists/oss-security/2014/10/01/19
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.5
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3d4405226d27b3a215e4d03cfa51f536244e5de7

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