SUSE SLES11 Security Update : xen (SUSE-SU-2020:14557-1)

The remote SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2020:14557-1 advisory. - A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing...

XStream: Unsafe deserizaliation of com.sun.corba.se.impl.activation.ServerTableEntry

A flaw was found in xstream. A remote attacker, who has sufficient rights, can execute commands of the host by manipulating the processed input stream. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability...

Qualcomm WLAN HOST Resource Management Error Vulnerability

Qualcomm WLAN HOST is a Qualcomm Incorporated USA wireless LAN component used in Qualcomm products. A resource management error vulnerability exists in the Qualcomm WLAN HOST, which arises from the possibility that an entry in the hash table could be deleted before a frame is placed in the PE que...

CVE-2020-27670

An issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a denial of service data corruption, cause a data leak, or possibly gain privileges because an AMD IOMMU page-table entry can be half-updated...

JITSploitation III: Subverting Control Flow

Posted by Samuel Groß, Project Zero This three-part series highlights the technical challenges involved in finding and exploiting JavaScript engine vulnerabilities in modern web browsers and evaluates current exploit mitigation technologies. The exploited vulnerability, CVE-2020-9802, was fixed i...

kernel: use-after-free in arch/x86/lib/insn-eval.c

A vulnerability was found in the arch/x86/lib/insn-eval.c function in the Linux kernel. An attacker could corrupt the memory due to a flaw in use-after-free access to an LDT entry caused by a race condition between modifyldt and a BR exception for an MPX bounds violation...

UBUNTU-CVE-2019-17344

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service by leveraging a long-running operation that exists to support restartability of PTE updates...

Finding Evil in Windows 10 Compressed Memory, Part Two: Virtual Store Deep Dive

Introduction This blog post is the second in a three-part series covering our Windows 10 memory forensics research and it coincides with our BlackHat USA 2019 presentation. In Part One of the series, we covered the integration of the research in both Volatily and Rekall memory forensics tools. We...

UBUNTU-CVE-2019-9544

An issue was discovered in Bento4 1.5.1-628. An out of bounds write occurs in AP4CttsTableEntry::AP4CttsTableEntry located in Core/Ap4Array.h. It can be triggered by sending a crafted file to for example the mp42hls binary. It allows an attacker to cause Denial of Service Segmentation fault or...

UBUNTU-CVE-2017-15128

A flaw was found in the hugetlbmcopyatomicpte function in mm/hugetlb.c in the Linux kernel before 4.13.12. A lack of size check could cause a denial of service BUG...

Code injection

The Comcast firmware on Cisco DPC3939 firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST devices allows remote attackers to obtain unintended access to the Network Processor NP 169.254/16 IP network by adding a routing-table entry that specifies the LAN IP address as the router for that...

CVE-2017-9481: Undefined Security Weakness

The Comcast firmware on Cisco DPC3939 firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST devices allows remote attackers to obtain unintended access to the Network Processor NP 169.254/16 IP network by adding a routing-table entry that specifies the LAN IP address as the router for that...

RHEL 6 : kernel (RHSA-2017:1491) (Stack Clash)

An update for kernel is now available for Red Hat Enterprise Linux 6.2 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 6.2 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

CVE-2016-4480

The guestwalktables function in arch/x86/mm/guestwalk.c in Xen 4.6.x and earlier does not properly handle the Page Size PS page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory...

DSA-3390-1 xen - security update

Bulletin has no description...

UBUNTU-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...

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...