CVE-2014-7284
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. Limited direct impact.
- Exploit odds
- 3.8% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 3.8% in the next 30 days (EPSS).
- Severity: 6.4 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 3.8% · EPSS, next 30 days
- Weakness
- CWE-200 · Information exposure
- Record status
- Modified
Affected
- Linux Kernel 3.13.1
- Linux Kernel 3.13.2
- Linux Kernel 3.13.3
- Linux Kernel 3.13.4
- Linux Kernel 3.13.5
- Linux Kernel 3.13.6
- Linux Kernel 3.13.7
- Linux Kernel 3.13.8
Attack profile CVSS 2.0 · 6.4
- Attack vector
- Network
- Complexity
- Low
- Authentication
- None
- Confidentiality
- None
- Integrity
- Partial
- Availability
- Partial
Raw vector
AV:N/AC:L/Au:N/C:N/I:P/A:P
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2014-7284.md and follow it. Check whether this project is affected by CVE-2014-7284. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/torvalds/linux/commit/3d4405226d27b3a215e4d03cfa51f536244e5de7
- https://github.com/torvalds/linux/commit/3d4405226d27b3a215e4d03cfa51f536244e5de7
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/