CVE-2014-7284

Severity: medium (CVSS 6.4 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2014-10-13 · updated 2026-06-17
Weakness: CWE-200

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.

Affected products

Linux kernel: 3.13.1, 3.13.2, 3.13.3, 3.13.4, 3.13.5, 3.13.6 (+9)

References

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

Get alerted when CVE-2014-7284 or the next vulnerability affects your stack