- A flaw was found in the way the get_rx_bufs() function in the vhost_net
implementation in the Linux kernel handled error conditions reported by the
vhost_get_vq_desc() function. A privileged guest user could use this flaw
to crash the host. (CVE-2014-0055, Important)
- A flaw was found in the way the Linux kernel processed an authenticated
COOKIE_ECHO chunk during the initialization of an SCTP connection. A remote
attacker could use this flaw to crash the system by initiating a specially
crafted SCTP handshake in order to trigger a NULL pointer dereference on
the system. (CVE-2014-0101, Important)
- A flaw was found in the way the Linux kernel's CIFS implementation
handled uncached write operations with specially crafted iovec structures.
An unprivileged local user with access to a CIFS share could use this flaw
to crash the system, leak kernel memory, or, potentially, escalate their
privileges on the system. Note: the default cache settings for CIFS mounts
on Red Hat Enterprise Linux 6 prohibit a successful exploitation of this
issue. (CVE-2014-0069, Moderate)
- A heap-based buffer overflow flaw was found in the Linux kernel's cdc-wdm
driver, used for USB CDC WCM device management. An attacker with physical
access to a system could use this flaw to cause a denial of service or,
potentially, escalate their privileges. (CVE-2013-1860, Low)
Bugs fixed (https://bugzilla.redhat.com/):
921970 - CVE-2013-1860 kernel: usb: cdc-wdm buffer overflow triggered by device
1062577 - CVE-2014-0055 kernel: vhost-net: insufficient handling of error conditions in get_rx_bufs()
1064253 - CVE-2014-0069 kernel: cifs: incorrect handling of bogus user pointers during uncached writes
1070705 - CVE-2014-0101 kernel: net: sctp: null pointer dereference when processing authenticated cookie_echo chunk
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