SUSE SLED12 / SLES12 Security Update : kernel-source (SUSE-SU-2015:1727-1)

High Nessus Plugin ID 86378

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The SUSE Linux Enterprise 12 kernel was updated to 3.12.48-52.27 to receive various security and bugfixes.

Following security bugs were fixed :

- CVE-2015-7613: A flaw was found in the Linux kernel IPC code that could lead to arbitrary code execution. The ipc_addid() function initialized a shared object that has unset uid/gid values. Since the fields are not initialized, the check can falsely succeed. (bsc#948536)

- CVE-2015-5156: When a guests KVM network devices is in a bridge configuration the kernel can create a situation in which packets are fragmented in an unexpected fashion. The GRO functionality can create a situation in which multiple SKB's are chained together in a single packets fraglist (by design). (bsc#940776)

- CVE-2015-5157: arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform mishandles IRET faults in processing NMIs that occurred during userspace execution, which might allow local users to gain privileges by triggering an NMI (bsc#938706).

- CVE-2015-6252: A flaw was found in the way the Linux kernel's vhost driver treated userspace provided log file descriptor when processing the VHOST_SET_LOG_FD ioctl command. The file descriptor was never released and continued to consume kernel memory. A privileged local user with access to the /dev/vhost-net files could use this flaw to create a denial-of-service attack (bsc#942367).

- CVE-2015-5697: The get_bitmap_file function in drivers/md/md.c in the Linux kernel before 4.1.6 does not initialize a certain bitmap data structure, which allows local users to obtain sensitive information from kernel memory via a GET_BITMAP_FILE ioctl call.
(bnc#939994)

- CVE-2015-6937: A NULL pointer dereference flaw was found in the Reliable Datagram Sockets (RDS) implementation allowing a local user to cause system DoS. A verification was missing that the underlying transport exists when a connection was created. (bsc#945825)

- CVE-2015-5283: A NULL pointer dereference flaw was found in SCTP implementation allowing a local user to cause system DoS. Creation of multiple sockets in parallel when system doesn't have SCTP module loaded can lead to kernel panic. (bsc#947155)

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Workstation Extension 12 :

zypper in -t patch SUSE-SLE-WE-12-2015-668=1

SUSE Linux Enterprise Software Development Kit 12 :

zypper in -t patch SUSE-SLE-SDK-12-2015-668=1

SUSE Linux Enterprise Server 12 :

zypper in -t patch SUSE-SLE-SERVER-12-2015-668=1

SUSE Linux Enterprise Module for Public Cloud 12 :

zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2015-668=1

SUSE Linux Enterprise Live Patching 12 :

zypper in -t patch SUSE-SLE-Live-Patching-12-2015-668=1

SUSE Linux Enterprise Desktop 12 :

zypper in -t patch SUSE-SLE-DESKTOP-12-2015-668=1

To bring your system up-to-date, use 'zypper patch'.

CPE: p-cpe:/a:novell:suse_linux:kernel-default, p-cpe:/a:novell:suse_linux:kernel-default-base, p-cpe:/a:novell:suse_linux:kernel-default-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-debugsource, p-cpe:/a:novell:suse_linux:kernel-default-devel, p-cpe:/a:novell:suse_linux:kernel-default-extra, p-cpe:/a:novell:suse_linux:kernel-default-extra-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-man, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:kernel-xen, p-cpe:/a:novell:suse_linux:kernel-xen-base, p-cpe:/a:novell:suse_linux:kernel-xen-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-xen-debuginfo, p-cpe:/a:novell:suse_linux:kernel-xen-debugsource, p-cpe:/a:novell:suse_linux:kernel-xen-devel, cpe:/o:novell:suse_linux:12

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/10/06

Vulnerability Publication Date: 2015/08/31

Reference Information

CVE: CVE-2015-5156, CVE-2015-5157, CVE-2015-5283, CVE-2015-5697, CVE-2015-6252, CVE-2015-6937, CVE-2015-7613

BID: 76005

SUSE SLED12 / SLES12 Security Update : kernel-source (SUSE-SU-2015:1727-1)

Synopsis

Description

Solution

See Also

Plugin Details

Risk Information

CVSS v2.0

Vulnerability Information

Reference Information