include/net/netfilter/nf_conntrack_extend.h in the netfilter subsystem in the Linux kernel before...
Vulnerability Description
include/net/netfilter/nf_conntrack_extend.h in the netfilter subsystem in the Linux kernel before 3.14.5 uses an insufficiently large data type for certain extension data, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via outbound network traffic that triggers extension loading, as demonstrated by configuring a PPTP tunnel in a NAT environment.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.securityfocus.com/bid/73953
- https://github.com/torvalds/linux/commit/223b02d923ecd7c84cf9780bb3686f455d279279
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.5
- http://marc.info/?l=netfilter-devel&m=140112364215200&w=2
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://www.openwall.com/lists/oss-security/2015/04/08/1
- http://www.debian.org/security/2015/dsa-3237
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=223b02d923ecd7c84cf9780bb3686f455d279279
- http://www.securitytracker.com/id/1032415
- http://rhn.redhat.com/errata/RHSA-2015-1534.html
- http://rhn.redhat.com/errata/RHSA-2015-1564.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1208684
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Weaknesses (CWE)
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MITRE ATT&CK TTPs
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