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CVE-2012-6638

Status Candidate

Overview

The tcp_rcv_state_process function in net/ipv4/tcp_input.c in the Linux kernel before 3.2.24 allows remote attackers to cause a denial of service (kernel resource consumption) via a flood of SYN+FIN TCP packets, a different vulnerability than CVE-2012-2663.

Related Files

Red Hat Security Advisory 2014-0772-01
Posted Jun 19, 2014
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2014-0772-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way the Linux kernel's floppy driver handled user space provided data in certain error code paths while processing FDRAWCMD IOCTL commands. A local user with write access to /dev/fdX could use this flaw to free (using the kfree() function) arbitrary kernel memory. It was found that the Linux kernel's floppy driver leaked internal kernel memory addresses to user space during the processing of the FDRAWCMD IOCTL command. A local user with write access to /dev/fdX could use this flaw to obtain information about the kernel heap arrangement.

tags | advisory, arbitrary, kernel, local
systems | linux, redhat
advisories | CVE-2012-6638, CVE-2014-1737, CVE-2014-1738
MD5 | 9c02f9c96f505ab6b0befdb86b60273c
Red Hat Security Advisory 2014-0433-01
Posted Apr 24, 2014
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2014-0433-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way the Linux kernel's TCP/IP protocol suite implementation handled TCP packets with both the SYN and FIN flags set. A remote attacker could use this flaw to consume an excessive amount of resources on the target system, potentially resulting in a denial of service. A flaw was found in the way the Linux kernel handled HID reports with an out-of-bounds Report ID. An attacker with physical access to the system could use this flaw to crash the system or, potentially, escalate their privileges on the system.

tags | advisory, remote, denial of service, kernel, tcp, protocol
systems | linux, redhat
advisories | CVE-2012-6638, CVE-2013-2888
MD5 | 5409f8ddb8e635db840556e643aefcb7
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