CVE-2015-7835

The modl2entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping...

Mac OS X Multiple EFI Vulnerabilities (EFI Security Update 2015-001)

The remote Mac OS X host is running EFI firmware that is affected by multiple vulnerabilities : - An insufficient locking issue exists, when resuming from sleep states, which allows a local attacker to write to the EFI flash memory by using an crafted application with root privileges. CVE-2015-36...

Scientific Linux Security Update : kernel on SL7.x x86_64 (20150305)

A flaw was found in the way the Linux kernel's XFS file system handled replacing of remote attributes under certain conditions. A local user with access to XFS file system mount could potentially use this flaw to escalate their privileges on the system. CVE-2015-0274, Important It was found that...

kernel: NULL pointer dereference in madvise(MADV_WILLNEED) support

A NULL pointer dereference flaw was found in the way the Linux kernel's madvise MADVWILLNEED functionality handled page table locking. A local, unprivileged user could use this flaw to crash the system...

CVE-2014-8173

The pmdnoneortranshugeorclearbad function in include/asm-generic/pgtable.h in the Linux kernel before 3.13 on NUMA systems does not properly determine whether a Page Middle Directory PMD entry is a transparent huge-table entry, which allows local users to cause a denial of service NULL pointer...

CVE-2014-8173

The pmdnoneortranshugeorclearbad function in include/asm-generic/pgtable.h in the Linux kernel before 3.13 on NUMA systems does not properly determine whether a Page Middle Directory PMD entry is a transparent huge-table entry, which allows local users to cause a denial of service NULL pointer...

Null pointer dereference

The pmdnoneortranshugeorclearbad function in include/asm-generic/pgtable.h in the Linux kernel before 3.13 on NUMA systems does not properly determine whether a Page Middle Directory PMD entry is a transparent huge-table entry, which allows local users to cause a denial of service NULL pointer...

CVE-2014-8173

CVE-2014-8173 affects the Linux kernel before 3.13 on NUMA systems. The function pmd_none_or_trans_huge_or_clear_bad in include/asm-generic/pgtable.h fails to correctly identify PMD entries as transparent huge-table entries, allowing a local user to trigger a NULL pointer dereference and system c...

CVE-2014-8173

The pmdnoneortranshugeorclearbad function in include/asm-generic/pgtable.h in the Linux kernel before 3.13 on NUMA systems does not properly determine whether a Page Middle Directory PMD entry is a transparent huge-table entry, which allows local users to cause a denial of service NULL pointer...

DRAM Rowhammer vulnerability Leads to Kernel Privilege Escalation

Security researchers have find out ways to hijack the Intel-compatible PCs running Linux by exploiting the physical weaknesses in certain varieties of DDR DRAM double data rate dynamic random-access memory chips and gaining higher kernel privileges on the system. The technique, dubbed "rowhammer"...

Linux Kernel (x86-64) - Rowhammer Privilege Escalation

Linux Kernel x86-64 - Rowhammer Privilege Escalation Sources: http://googleprojectzero.blogspot.ca/2015/03/exploiting-dram-rowhammer-bug-to-gain.html https://code.google.com/p/google-security-research/issues/detail?id=283 Full PoC:...

kernel: NULL pointer dereference in madvise(MADV_WILLNEED) support

A NULL pointer dereference flaw was found in the way the Linux kernel's madvise MADVWILLNEED functionality handled page table locking. A local, unprivileged user could use this flaw to crash the system...

CentOS 7 : kernel (CESA-2015:0102)

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity...

kernel, perf, python security update

CentOS Errata and Security Advisory CESA-2015:0102 Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System...

Scientific Linux Security Update : kernel on SL7.x x86_64 (20150128)

A flaw was found in the way the Linux kernel's SCTP implementation validated INIT chunks when performing Address Configuration Change ASCONF. A remote attacker could use this flaw to crash the system by sending a specially crafted SCTP packet to trigger a NULL pointer dereference on the system...

OracleVM 3.2 : xen (OVMSA-2013-0036)

The remote OracleVM system is missing necessary patches to address critical security updates : - VT-d: don't permit SVTNOVERIFY entries for known device types Only in cases where we don't know what to do we should leave the IRTE blank suppressing all validation, but we should always log a warning...

F5 Networks BIG-IP : Linux kernel vulnerability (SOL15852)

The trytounmapcluster function in mm/rmap.c in the Linux kernel before 3.14.3 does not properly consider which pages must be locked, which allows local users to cause a denial of service system crash by triggering a memory-usage pattern that requires removal of page-table mappings. C Tenable...

SOL15852 - Linux kernel vulnerability CVE-2014-3122

The trytounmapcluster function in mm/rmap.c in the Linux kernel before 3.14.3 does not properly consider which pages must be locked, which allows local users to cause a denial of service system crash by triggering a memory-usage pattern that requires removal of page-table mappings. CVE-2014-3122...

Oracle Linux 6 : kernel (ELSA-2014-1392)

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2014-1392 advisory. - kernel futex: Fix errors in nested key ref-counting Denys Vlasenko 1094458 CVE-2014-0205 Tenable has extracted the preceding description block direct...

kernel security and bug fix update

2.6.32-431.29.2 - kernel futex: Fix errors in nested key ref-counting Denys Vlasenko 1094457 1094458 CVE-2014-0205 - net vxlan: fix NULL pointer dereference Jiri Benc 1114549 1096351 CVE-2014-3535 2.6.32-431.29.1 - mm hugetlb: ensure hugepage access is denied if hugepages are not supported Gustav...