Lucene search

K
centosCentOS ProjectCESA-2014:1997
HistoryDec 17, 2014 - 12:13 p.m.

kernel, perf, python security update

2014-12-1712:13:22
CentOS Project
lists.centos.org
70

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

0.955 High

EPSS

Percentile

99.3%

CentOS Errata and Security Advisory CESA-2014:1997

  • A flaw was found in the way the Linux kernel handled GS segment register
    base switching when recovering from a #SS (stack segment) fault on an
    erroneous return to user space. A local, unprivileged user could use this
    flaw to escalate their privileges on the system. (CVE-2014-9322, Important)

  • A flaw was found in the way the Linux kernel’s SCTP implementation
    handled malformed or duplicate Address Configuration Change Chunks
    (ASCONF). A remote attacker could use either of these flaws to crash the
    system. (CVE-2014-3673, CVE-2014-3687, Important)

  • A flaw was found in the way the Linux kernel’s SCTP implementation
    handled the association’s output queue. A remote attacker could send
    specially crafted packets that would cause the system to use an excessive
    amount of memory, leading to a denial of service. (CVE-2014-3688,
    Important)

  • A stack overflow flaw caused by infinite recursion was found in the way
    the Linux kernel’s UDF file system implementation processed indirect ICBs.
    An attacker with physical access to the system could use a specially
    crafted UDF image to crash the system. (CVE-2014-6410, Low)

  • It was found that the Linux kernel’s networking implementation did not
    correctly handle the setting of the keepalive socket option on raw sockets.
    A local user able to create a raw socket could use this flaw to crash the
    system. (CVE-2012-6657, Low)

  • It was found that the parse_rock_ridge_inode_internal() function of the
    Linux kernel’s ISOFS implementation did not correctly check relocated
    directories when processing Rock Ridge child link (CL) tags. An attacker
    with physical access to the system could use a specially crafted ISO image
    to crash the system or, potentially, escalate their privileges on the
    system. (CVE-2014-5471, CVE-2014-5472, Low)

Red Hat would like to thank Andy Lutomirski for reporting CVE-2014-9322.
The CVE-2014-3673 issue was discovered by Liu Wei of Red Hat.

Bug fixes:

  • This update fixes a race condition issue between the sock_queue_err_skb
    function and sk_forward_alloc handling in the socket error queue
    (MSG_ERRQUEUE), which could occasionally cause the kernel, for example when
    using PTP, to incorrectly track allocated memory for the error queue, in
    which case a traceback would occur in the system log. (BZ#1155427)

  • The zcrypt device driver did not detect certain crypto cards and the
    related domains for crypto adapters on System z and s390x architectures.
    Consequently, it was not possible to run the system on new crypto hardware.
    This update enables toleration mode for such devices so that the system
    can make use of newer crypto hardware. (BZ#1158311)

  • After mounting and unmounting an XFS file system several times
    consecutively, the umount command occasionally became unresponsive.
    This was caused by the xlog_cil_force_lsn() function that was not waiting
    for completion as expected. With this update, xlog_cil_force_lsn() has been
    modified to correctly wait for completion, thus fixing this bug.
    (BZ#1158325)

  • When using the ixgbe adapter with disabled LRO and the tx-usec or rs-usec
    variables set to 0, transmit interrupts could not be set lower than the
    default of 8 buffered tx frames. Consequently, a delay of TCP transfer
    occurred. The restriction of a minimum of 8 buffered frames has been
    removed, and the TCP delay no longer occurs. (BZ#1158326)

  • The offb driver has been updated for the QEMU standard VGA adapter,
    fixing an incorrect displaying of colors issue. (BZ#1158328)

  • Under certain circumstances, when a discovered MTU expired, the IPv6
    connection became unavailable for a short period of time. This bug has been
    fixed, and the connection now works as expected. (BZ#1161418)

  • A low throughput occurred when using the dm-thin driver to write to
    unprovisioned or shared chunks for a thin pool with the chunk size bigger
    than the max_sectors_kb variable. (BZ#1161420)

  • Large write workloads on thin LVs could cause the iozone and smallfile
    utilities to terminate unexpectedly. (BZ#1161421)

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2014-December/083000.html

Affected packages:
kernel
kernel-abi-whitelists
kernel-debug
kernel-debug-devel
kernel-devel
kernel-doc
kernel-firmware
kernel-headers
perf
python-perf

Upstream details at:
https://access.redhat.com/errata/RHSA-2014:1997

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

0.955 High

EPSS

Percentile

99.3%