CentOS Update for kernel CESA-2013:0744 centos6

Published: 2013-04-25 04:53:07
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C

Summary:
The remote host is missing an update for the 'kernel' Linux Distribution Package(s) announced via the referenced advisory.

Affected Versions:
kernel on CentOS 6

Recommendations:
Please install the updated Linux Distribution Packages.

Technical Details:
Security: * An integer overflow flaw, leading to a heap-based buffer overflow, was found in the way the Intel i915 driver in the Linux kernel handled the allocation of the buffer used for relocation copies. A local user with console access could use this flaw to cause a denial of service or escalate their privileges. (CVE-2013-0913, Important) * A buffer overflow flaw was found in the way UTF-8 characters were converted to UTF-16 in the utf8s_to_utf16s() function of the Linux kernel's FAT file system implementation. A local user able to mount a FAT file system with the 'utf8=1' option could use this flaw to crash the system or, potentially, to escalate their privileges. (CVE-2013-1773, Important) * A flaw was found in the way KVM handled guest time updates when the buffer the guest registered by writing to the MSR_KVM_SYSTEM_TIME machine state register (MSR) crossed a page boundary. A privileged guest user could use this flaw to crash the host or, potentially, escalate their privileges, allowing them to execute arbitrary code at the host kernel level. (CVE-2013-1796, Important) * A potential use-after-free flaw was found in the way KVM handled guest time updates when the GPA (guest physical address) the guest registered by writing to the MSR_KVM_SYSTEM_TIME machine state register (MSR) fell into a movable or removable memory region of the hosting user-space process (by default, QEMU-KVM) on the host. If that memory region is deregistered from KVM using KVM_SET_USER_MEMORY_REGION and the allocated virtual memory reused, a privileged guest user could potentially use this flaw to escalate their privileges on the host. (CVE-2013-1797, Important) * A flaw was found in the way KVM emulated IOAPIC (I/O Advanced Programmable Interrupt Controller). A missing validation check in the ioapic_read_indirect() function could allow a privileged guest user to crash the host, or read a substantial portion of host kernel memory. (CVE-2013-1798, Important) * A race condition in install_user_keyrings(), leading to a NULL pointer dereference, was found in the key management facility. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2013-1792, Moderate) * A NULL pointer dereference in the XFRM implementation could allow a local user who has the CAP_NET_ADMIN capability to cause a denial of service. (CVE-2013-1826, Moderate) * A NULL pointer dereference in the Datagram Congestion Control Protocol (DCCP) implementation could allow a local user to cause a denial of service. (CVE ... Description truncated, please see the referenced URL(s) for more information.

Detection Type:
Linux Distribution Package

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2012-6537
https://nvd.nist.gov/vuln/detail/CVE-2012-6546
https://nvd.nist.gov/vuln/detail/CVE-2012-6547
https://nvd.nist.gov/vuln/detail/CVE-2013-0349
https://nvd.nist.gov/vuln/detail/CVE-2013-0913
https://nvd.nist.gov/vuln/detail/CVE-2013-1767
https://nvd.nist.gov/vuln/detail/CVE-2013-1773
https://nvd.nist.gov/vuln/detail/CVE-2013-1774
https://nvd.nist.gov/vuln/detail/CVE-2013-1792
https://nvd.nist.gov/vuln/detail/CVE-2013-1796
https://nvd.nist.gov/vuln/detail/CVE-2013-1797
https://nvd.nist.gov/vuln/detail/CVE-2013-1798
https://nvd.nist.gov/vuln/detail/CVE-2013-1826
https://nvd.nist.gov/vuln/detail/CVE-2013-1827

References:

http://lists.centos.org/pipermail/centos-announce/2013-April/019701.html

Severity
High
CVSS Score
7.2
Published
2013-04-25
Modified
2019-03-15
Category
CentOS Local Security Checks

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