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CVE-2012-2744

Status Candidate

Overview

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.

Related Files

Red Hat Security Advisory 2012-1148-01
Posted Aug 8, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1148-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issue: A NULL pointer dereference flaw was found in the nf_ct_frag6_reasm() function in the Linux kernel's netfilter IPv6 connection tracking implementation. A remote attacker could use this flaw to send specially-crafted packets to a target system that is using IPv6 and also has the nf_conntrack_ipv6 kernel module loaded, causing it to crash.

tags | advisory, remote, kernel
systems | linux, redhat
advisories | CVE-2012-2744
SHA-256 | baa3650c927f75b71009e6046fdee38dd97700186f1927162b03c07e62ab28f7
Red Hat Security Advisory 2012-1129-01
Posted Jul 31, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1129-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A NULL pointer dereference flaw was found in the nf_ct_frag6_reasm() function in the Linux kernel's netfilter IPv6 connection tracking implementation. A remote attacker could use this flaw to send specially-crafted packets to a target system that is using IPv6 and also has the nf_conntrack_ipv6 kernel module loaded, causing it to crash.

tags | advisory, remote, kernel
systems | linux, redhat
advisories | CVE-2011-1083, CVE-2012-2744
SHA-256 | 6c0b4a58bbe502f34d3cdba3053094775341e381fd60d5e809bd0de7e804b918
Red Hat Security Advisory 2012-1114-01
Posted Jul 26, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1114-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issue: A NULL pointer dereference flaw was found in the nf_ct_frag6_reasm() function in the Linux kernel's netfilter IPv6 connection tracking implementation. A remote attacker could use this flaw to send specially-crafted packets to a target system that is using IPv6 and also has the nf_conntrack_ipv6 kernel module loaded, causing it to crash.

tags | advisory, remote, kernel
systems | linux, redhat
advisories | CVE-2012-2744
SHA-256 | 737ca44d3c22f02002125758603606b3bf1912e7077558158feefff2fb692236
Ubuntu Security Notice USN-1507-1
Posted Jul 17, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1507-1 - A flaw was found in the Linux kernel's KVM (Kernel Virtual Machine) virtual cpu setup. An unprivileged local user could exploit this flaw to crash the system leading to a denial of service. An error was found in the Linux kernel's IPv6 netfilter when connection tracking is enabled. A remote attacker could exploit this flaw to crash a system if it is using IPv6 with the nf_contrack_ipv6 kernel module loaded. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2012-1601, CVE-2012-2744, CVE-2012-1601, CVE-2012-2744
SHA-256 | 16f2b75936f467bc23ca10f8ddc7c026a0d723c0ceef279e65985417b73730bc
Red Hat Security Advisory 2012-1064-01
Posted Jul 10, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1064-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A NULL pointer dereference flaw was found in the nf_ct_frag6_reasm() function in the Linux kernel's netfilter IPv6 connection tracking implementation. A remote attacker could use this flaw to send specially-crafted packets to a target system that is using IPv6 and also has the nf_conntrack_ipv6 kernel module loaded, causing it to crash.

tags | advisory, remote, kernel
systems | linux, redhat
advisories | CVE-2012-2744, CVE-2012-2745
SHA-256 | 0852eec4bdd3e4bd9f3b62617cce1230392a218607fdd7e60df4b80eb3789675
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