CVE-2014-7284
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…
Does this matter?
Lower severity and a low EPSS score (3.75%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 6.4 MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:P
- EPSS
- 3.75% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
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/3d4405226d27b3a215e4d03cfa51f536244e5de7Exploit
- https://web.archive.org/web/20141002163852/http://secondlookforensics.com/ngro-linux-kernel-bug/Exploit
- 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/3d4405226d27b3a215e4d03cfa51f536244e5de7Exploit
- https://web.archive.org/web/20141002163852/http://secondlookforensics.com/ngro-linux-kernel-bug/Exploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.