CVE-2014-7284

NameCVE-2014-7284
DescriptionThe 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie3.16.56-1+deb8u1fixed
jessie (security)3.16.59-1fixed
stretch4.9.110-1fixed
stretch (security)4.9.110-3+deb9u6fixed
buster, sid4.18.10-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)3.16.2-1medium
linuxsourcewheezy(not affected)
linux-2.6source(unstable)(not affected)

Notes

[wheezy] - linux <not-affected> (Vulnerable code introduced in 3.13)
- linux-2.6 <not-affected> (Vulnerable code introduced in 3.13)
Upstream fix: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3d4405226d27b3a215e4d03cfa51f536244e5de7 (v3.15-rc7)
Introduced by https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a48e42920ff38bc90bbf75143fff4555723d4540
http://secondlookforensics.com/ngro-linux-kernel-bug/

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