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CVE-2012-2744

net/ipv6/netfilter/nf_conntrack_reasm.c in the Linux kernel before 2.6.34, when the...

7.8 HighFix available

net/ipv6/netfilter/nf_conntrack_reasm.c in the Linux kernel before 2.6.34, when the nf_conntrack_ipv6 module is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via certain types of fragmented IPv6 packets.

Exploit likelihood

4.47%Up 2.5 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.8

net/ipv6/netfilter/nf_conntrack_reasm.c in the Linux kernel before 2.6.34, when the nf_conntrack_ipv6 module is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via certain types of fragmented IPv6 packets.

Record
CVE-2012-2744
CVSS 2.0
7.8 HighAV:N/AC:L/Au:N/C:N/I:N/A:C
Updated
2026-11-02
CVE List No score

net/ipv6/netfilter/nf_conntrack_reasm.c in the Linux kernel before 2.6.34, when the nf_conntrack_ipv6 module is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via certain types of fragmented IPv6 packets.

Record
CVE-2012-2744
Updated
2026-11-02
EUVDEUVD-2012-2724 No score

net/ipv6/netfilter/nf_conntrack_reasm.c in the Linux kernel before 2.6.34, when the nf_conntrack_ipv6 module is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via certain types of fragmented IPv6 packets.

Record
EUVD-2012-2724
Updated
2026-11-03
GitHub AdvisoriesGHSA-rf7q-2943-h3jp No score

net/ipv6/netfilter/nf_conntrack_reasm.c in the Linux kernel before 2.6.34, when the...

net/ipv6/netfilter/nf_conntrack_reasm.c in the Linux kernel before 2.6.34, when the nf_conntrack_ipv6 module is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via certain types of fragmented IPv6 packets.

Record
GHSA-rf7q-2943-h3jp
Updated
2026-11-02
OSV No score

net/ipv6/netfilter/nf_conntrack_reasm.c in the Linux kernel before 2.6.34, when the nf_conntrack_ipv6 module is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via certain types of fragmented IPv6 packets.

Record
CVE-2012-2744
Updated
2026-11-02
OSVDEBIAN-CVE-2012-2744 No score

net/ipv6/netfilter/nf_conntrack_reasm.c in the Linux kernel before 2.6.34, when the nf_conntrack_ipv6 module is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via certain types of fragmented IPv6 packets.

Record
DEBIAN-CVE-2012-2744
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
linux
Debian:12
 before 2.6.34-1
2.6.34-1
linux
Debian:13
 before 2.6.34-1
2.6.34-1
linux
Debian:14
 before 2.6.34-1
2.6.34-1
kernel
Red Hat:enterprise_linux:6::client
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debug
Red Hat:enterprise_linux:6::client
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debug-debuginfo
Red Hat:enterprise_linux:6::client
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debug-devel
Red Hat:enterprise_linux:6::client
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debuginfo
Red Hat:enterprise_linux:6::client
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debuginfo-common-i686
Red Hat:enterprise_linux:6::client
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debuginfo-common-x86_64
Red Hat:enterprise_linux:6::client
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
Show 115 moreShow less
Affected packages
PackageAffectedFixed
kernel-devel
Red Hat:enterprise_linux:6::client
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-doc
Red Hat:enterprise_linux:6::client
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-firmware
Red Hat:enterprise_linux:6::client
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-headers
Red Hat:enterprise_linux:6::client
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
perf
Red Hat:enterprise_linux:6::client
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
perf-debuginfo
Red Hat:enterprise_linux:6::client
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
python-perf-debuginfo
Red Hat:enterprise_linux:6::client
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
python-perf
Red Hat:enterprise_linux:6::client
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel
Red Hat:enterprise_linux:6::computenode
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debug
Red Hat:enterprise_linux:6::computenode
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debug-debuginfo
Red Hat:enterprise_linux:6::computenode
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debug-devel
Red Hat:enterprise_linux:6::computenode
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debuginfo
Red Hat:enterprise_linux:6::computenode
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debuginfo-common-x86_64
Red Hat:enterprise_linux:6::computenode
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-devel
Red Hat:enterprise_linux:6::computenode
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-doc
Red Hat:enterprise_linux:6::computenode
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-firmware
Red Hat:enterprise_linux:6::computenode
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-headers
Red Hat:enterprise_linux:6::computenode
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
perf
Red Hat:enterprise_linux:6::computenode
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
perf-debuginfo
Red Hat:enterprise_linux:6::computenode
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
python-perf-debuginfo
Red Hat:enterprise_linux:6::computenode
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
python-perf
Red Hat:enterprise_linux:6::computenode
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-bootwrapper
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debug
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debug-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debug-devel
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debuginfo-common-i686
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debuginfo-common-ppc64
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debuginfo-common-s390x
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debuginfo-common-x86_64
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-devel
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-doc
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-firmware
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-headers
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-kdump
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-kdump-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-kdump-devel
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
perf
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
perf-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
python-perf-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
python-perf
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel
Red Hat:enterprise_linux:6::workstation
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debug
Red Hat:enterprise_linux:6::workstation
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debug-debuginfo
Red Hat:enterprise_linux:6::workstation
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debug-devel
Red Hat:enterprise_linux:6::workstation
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debuginfo
Red Hat:enterprise_linux:6::workstation
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debuginfo-common-i686
Red Hat:enterprise_linux:6::workstation
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-debuginfo-common-x86_64
Red Hat:enterprise_linux:6::workstation
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-devel
Red Hat:enterprise_linux:6::workstation
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-doc
Red Hat:enterprise_linux:6::workstation
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-firmware
Red Hat:enterprise_linux:6::workstation
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel-headers
Red Hat:enterprise_linux:6::workstation
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
perf
Red Hat:enterprise_linux:6::workstation
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
perf-debuginfo
Red Hat:enterprise_linux:6::workstation
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
python-perf-debuginfo
Red Hat:enterprise_linux:6::workstation
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
python-perf
Red Hat:enterprise_linux:6::workstation
 before 0:2.6.32-279.1.1.el6
0:2.6.32-279.1.1.el6
kernel
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel-bootwrapper
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel-debug
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel-debug-debuginfo
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel-debug-devel
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel-debuginfo
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel-debuginfo-common-i686
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel-debuginfo-common-ppc64
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel-debuginfo-common-s390x
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel-debuginfo-common-x86_64
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel-devel
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel-doc
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel-firmware
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel-headers
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel-kdump
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel-kdump-debuginfo
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel-kdump-devel
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
perf
Red Hat:rhel_eus:6.0
 before 0:2.6.32-71.40.1.el6
0:2.6.32-71.40.1.el6
kernel
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
kernel-bootwrapper
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
kernel-debug
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
kernel-debug-debuginfo
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
kernel-debug-devel
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
kernel-debuginfo
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
kernel-debuginfo-common-i686
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
kernel-debuginfo-common-ppc64
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
kernel-debuginfo-common-s390x
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
kernel-debuginfo-common-x86_64
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
kernel-devel
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
kernel-doc
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
kernel-firmware
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
kernel-kdump
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
kernel-kdump-debuginfo
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
kernel-kdump-devel
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
perf
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
perf-debuginfo
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
python-perf-debuginfo
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
python-perf
Red Hat:rhel_eus:6.2::server
 before 0:2.6.32-220.24.1.el6
0:2.6.32-220.24.1.el6
kernel
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
kernel-bootwrapper
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
kernel-debug
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
kernel-debug-debuginfo
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
kernel-debug-devel
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
kernel-debuginfo
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
kernel-debuginfo-common-i686
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
kernel-debuginfo-common-ppc64
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
kernel-debuginfo-common-s390x
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
kernel-debuginfo-common-x86_64
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
kernel-devel
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
kernel-doc
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
kernel-firmware
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
kernel-headers
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
kernel-kdump
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
kernel-kdump-debuginfo
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
kernel-kdump-devel
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
perf
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6
perf-debuginfo
Red Hat:rhel_eus:6.1
 before 0:2.6.32-131.30.1.el6
0:2.6.32-131.30.1.el6

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2012-2744 is a high vulnerability (CVSS 7.8) in Linux Kernel, published August 9, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.47%, the 91st percentile. Fixed in linux 2.6.34-1.

References

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