Vulnerability Name:

CVE-2014-9715 (CCN-103522)

Assigned:2015-04-08
Published:2015-04-08
Updated:2016-12-31
Summary: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.
CVSS v3 Severity:6.2 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:4.9 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
3.7 Low (Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
3.7 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
5.7 Medium (REDHAT CVSS v2 Vector: AV:A/AC:M/Au:N/C:N/I:N/A:C)
4.2 Medium (REDHAT Temporal CVSS v2 Vector: AV:A/AC:M/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-Other
CWE-841
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2014-9715

Source: CONFIRM
Type: UNKNOWN
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=223b02d923ecd7c84cf9780bb3686f455d279279

Source: CCN
Type: Linux Kernel GIT Repository
netfilter: nf_conntrack: reserve two bytes for nf_ct_ext->len

Source: MLIST
Type: UNKNOWN
[netfilter-devel] 20140526 OOPS NULL pointer dereference in nf_nat_setup_info+0x471 (reproductible, 3.14.4)

Source: REDHAT
Type: UNKNOWN
RHSA-2015:1534

Source: REDHAT
Type: UNKNOWN
RHSA-2015:1564

Source: DEBIAN
Type: UNKNOWN
DSA-3237

Source: CCN
Type: IBM Security Bulletin T1022487
PowerKVM is affected by Linux Kernel vulnerabilities (multiple CVEs)

Source: CONFIRM
Type: UNKNOWN
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.5

Source: MLIST
Type: UNKNOWN
[oss-security] 20150407 CVE request netfilter connection tracking accounting.

Source: CONFIRM
Type: UNKNOWN
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html

Source: BID
Type: UNKNOWN
73953

Source: CCN
Type: BID-73953
Linux Kernel 'nf_conntrack_extend.h' NULL Pointer Dereference Denial of Service Vulnerability

Source: SECTRACK
Type: UNKNOWN
1032415

Source: CCN
Type: Red Hat Bugzilla – Bug 1208684
(CVE-2014-9715) CVE-2014-9715 kernel: netfilter connection tracking extensions denial of service

Source: CONFIRM
Type: UNKNOWN
https://bugzilla.redhat.com/show_bug.cgi?id=1208684

Source: XF
Type: UNKNOWN
linux-kernel-cve20149715-dos(103522)

Source: CONFIRM
Type: UNKNOWN
https://github.com/torvalds/linux/commit/223b02d923ecd7c84cf9780bb3686f455d279279

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2014-9715

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version <= 3.14.4)

    • Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:7:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:7::client:*:*:*:*:*

    • Configuration RedHat 3:
  • cpe:/o:redhat:enterprise_linux:7::computenode:*:*:*:*:*

    • Configuration RedHat 4:
  • cpe:/o:redhat:enterprise_linux:7::server:*:*:*:*:*

    • Configuration RedHat 5:
  • cpe:/o:redhat:enterprise_linux:7::workstation:*:*:*:*:*

    • Configuration RedHat 6:
  • cpe:/a:redhat:rhel_extras_rt:7:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:3.14:-:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:powerkvm:2.1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20149715
    V
    		CVE-2014-9715
    2022-05-20
    oval:org.cisecurity:def:72
    P
    		DSA-3237-1 -- linux -- security update
    2016-02-08
    oval:com.redhat.rhsa:def:20151534
    P
    		RHSA-2015:1534: kernel security and bug fix update (Moderate)
    2015-08-06
    oval:com.redhat.rhsa:def:20151565
    P
    		RHSA-2015:1565: kernel-rt security, bug fix, and enhancement update (Moderate)
    2015-08-05
    oval:com.ubuntu.xenial:def:201497150000000
    V
    		CVE-2014-9715 on Ubuntu 16.04 LTS (xenial) - medium.
    2015-05-27
    oval:com.ubuntu.xenial:def:20149715000
    V
    		CVE-2014-9715 on Ubuntu 16.04 LTS (xenial) - medium.
    2015-05-27
    oval:com.ubuntu.precise:def:20149715000
    V
    		CVE-2014-9715 on Ubuntu 12.04 LTS (precise) - medium.
    2015-05-27
    oval:com.ubuntu.trusty:def:20149715000
    V
    		CVE-2014-9715 on Ubuntu 14.04 LTS (trusty) - medium.
    2015-05-27
    BACK
    linux linux kernel *
    linux linux kernel 3.14 -
    ibm powerkvm 2.1