The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2015:1272 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux     operating system.

    * A flaw was found in the way Linux kernel's Transparent Huge Pages (THP)     implementation handled non-huge page migration. A local, unprivileged user     could use this flaw to crash the kernel by migrating transparent hugepages.
    (CVE-2014-3940, Moderate)

    * A buffer overflow flaw was found in the way the Linux kernel's eCryptfs     implementation decoded encrypted file names. A local, unprivileged user     could use this flaw to crash the system or, potentially, escalate their     privileges on the system. (CVE-2014-9683, Moderate)

    * A race condition flaw was found between the chown and execve system     calls. When changing the owner of a setuid user binary to root, the race     condition could momentarily make the binary setuid root. A local,     unprivileged user could potentially use this flaw to escalate their     privileges on the system. (CVE-2015-3339, Moderate)

    * Multiple out-of-bounds write flaws were found in the way the Cherry     Cymotion keyboard driver, KYE/Genius device drivers, Logitech device     drivers, Monterey Genius KB29E keyboard driver, Petalynx Maxter remote     control driver, and Sunplus wireless desktop driver handled HID reports     with an invalid report descriptor size. An attacker with physical access to     the system could use either of these flaws to write data past an allocated     memory buffer. (CVE-2014-3184, Low)

    * An information leak flaw was found in the way the Linux kernel's Advanced     Linux Sound Architecture (ALSA) implementation handled access of the user     control's state. A local, privileged user could use this flaw to leak     kernel memory to user space. (CVE-2014-4652, Low)

    * It was found that the espfix functionality could be bypassed by     installing a 16-bit RW data segment into GDT instead of LDT (which espfix     checks), and using that segment on the stack. A local, unprivileged user     could potentially use this flaw to leak kernel stack addresses.
    (CVE-2014-8133, Low)

    * An information leak flaw was found in the Linux kernel's IEEE 802.11     wireless networking implementation. When software encryption was used, a     remote attacker could use this flaw to leak up to 8 bytes of plaintext.
    (CVE-2014-8709, Low)

    * It was found that the Linux kernel KVM subsystem's sysenter instruction     emulation was not sufficient. An unprivileged guest user could use this     flaw to escalate their privileges by tricking the hypervisor to emulate a     SYSENTER instruction in 16-bit mode, if the guest OS did not initialize the     SYSENTER model-specific registers (MSRs). Note: Certified guest operating     systems for Red Hat Enterprise Linux with KVM do initialize the SYSENTER     MSRs and are thus not vulnerable to this issue when running on a KVM     hypervisor. (CVE-2015-0239, Low)

    Red Hat would like to thank Andy Lutomirski for reporting the CVE-2014-8133     issue, and Nadav Amit for reporting the CVE-2015-0239 issue.

    This update fixes several hundred bugs and adds numerous enhancements.
    Refer to the Red Hat Enterprise Linux 6.7 Release Notes for information on     the most significant of these changes, and the following Knowledgebase     article for further information:

    https://access.redhat.com/articles/1466073

    All kernel users are advised to upgrade to these updated packages, which     contain backported patches to correct these issues and add these     enhancements. The system must be rebooted for this update to take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2015-2152 advisory.

    - [kernel] Initialize msg/shm IPC objects before doing ipc_addid() (Lennert Buytenhek) [1271507]     {CVE-2015-7613}
    - [fs] vfs: Test for and handle paths that are unreachable from their mnt_root ('Eric W. Biederman')     [1209371] {CVE-2015-2925}
    - [fs] dcache: Handle escaped paths in prepend_path ('Eric W. Biederman') [1209371] {CVE-2015-2925}
    - [net] sctp: fix race on protocol/netns initialization (Marcelo Leitner) [1251807] {CVE-2015-5283}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update should fix the adjtimex issues seen on 32bit systems with 3.18.5-200 The 3.18.5 stable update contains a number of important fixes across the tree. The 3.18.4 stable update contains a number of important fixes across the tree.

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

This update should fix the adjtimex issues seen on 32bit systems with 3.18.5-100 The 3.18.5 stable update contains a number of important fixes across the tree. The 3.18.4 stable update contains a number new features and drivers as well as several important fixes across the tree.

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

A flaw was discovered in the Kernel Virtual Machine's (KVM) emulation of the SYSTENTER instruction when the guest OS does not initialize the SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of service of the guest OS (crash) or potentially gain privileges on the guest OS. (CVE-2015-0239)

Andy Lutomirski discovered an information leak in the Linux kernel's Thread Local Storage (TLS) implementation allowing users to bypass the espfix to obtain information that could be used to bypass the Address Space Layout Randomization (ASLR) protection mechanism. A local user could exploit this flaw to obtain potentially sensitive information from kernel memory. (CVE-2014-8133)

A restriction bypass was discovered in iptables when conntrack rules are specified and the conntrack protocol handler module is not loaded into the Linux kernel. This flaw can cause the firewall rules on the system to be bypassed when conntrack rules are used. (CVE-2014-8160)

A flaw was discovered with file renaming in the linux kernel. A local user could exploit this flaw to cause a denial of service (deadlock and system hang). (CVE-2014-8559)

A flaw was discovered in how supplemental group memberships are handled in certain namespace scenarios. A local user could exploit this flaw to bypass file permission restrictions. (CVE-2014-8989)

A flaw was discovered in how Thread Local Storage (TLS) is handled by the task switching function in the Linux kernel for x86_64 based machines. A local user could exploit this flaw to bypass the Address Space Layout Radomization (ASLR) protection mechanism. (CVE-2014-9419)

Prasad J Pandit reported a flaw in the rock_continue function of the Linux kernel's ISO 9660 CDROM file system. A local user could exploit this flaw to cause a denial of service (system crash or hang).
(CVE-2014-9420)

A flaw was discovered in the fragment handling of the B.A.T.M.A.N.
Advanced Meshing Protocol in the Linux kernel. A remote attacker could exploit this flaw to cause a denial of service (mesh-node system crash) via fragmented packets. (CVE-2014-9428)

A race condition was discovered in the Linux kernel's key ring. A local user could cause a denial of service (memory corruption or panic) or possibly have unspecified impact via the keyctl commands.
(CVE-2014-9529)

A memory leak was discovered in the ISO 9660 CDROM file system when parsing rock ridge ER records. A local user could exploit this flaw to obtain sensitive information from kernel memory via a crafted iso9660 image. (CVE-2014-9584)

A flaw was discovered in the Address Space Layout Randomization (ASLR) of the Virtual Dynamically linked Shared Objects (vDSO) location. This flaw makes it easier for a local user to bypass the ASLR protection mechanism. (CVE-2014-9585)

Dmitry Chernenkov discovered a buffer overflow in eCryptfs' encrypted file name decoding. A local unprivileged user could exploit this flaw to cause a denial of service (system crash) or potentially gain administrative privileges. (CVE-2014-9683).

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

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2015-3053 advisory.

    - KVM: x86: SYSENTER emulation is broken (Nadav Amit)  [Orabug: 21502739]  {CVE-2015-0239} {CVE-2015-0239}
    - fs: take i_mutex during prepare_binprm for set[ug]id executables (Jann Horn)  [Orabug: 21502254]     {CVE-2015-3339}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

* A flaw was found in the way Linux kernel's Transparent Huge Pages (THP) implementation handled non-huge page migration. A local, unprivileged user could use this flaw to crash the kernel by migrating transparent hugepages. (CVE-2014-3940, Moderate)

* A buffer overflow flaw was found in the way the Linux kernel's eCryptfs implementation decoded encrypted file names. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-9683, Moderate)

* A race condition flaw was found between the chown and execve system calls. When changing the owner of a setuid user binary to root, the race condition could momentarily make the binary setuid root. A local, unprivileged user could potentially use this flaw to escalate their privileges on the system. (CVE-2015-3339, Moderate)

* Multiple out-of-bounds write flaws were found in the way the Cherry Cymotion keyboard driver, KYE/Genius device drivers, Logitech device drivers, Monterey Genius KB29E keyboard driver, Petalynx Maxter remote control driver, and Sunplus wireless desktop driver handled HID reports with an invalid report descriptor size. An attacker with physical access to the system could use either of these flaws to write data past an allocated memory buffer. (CVE-2014-3184, Low)

* An information leak flaw was found in the way the Linux kernel's Advanced Linux Sound Architecture (ALSA) implementation handled access of the user control's state. A local, privileged user could use this flaw to leak kernel memory to user space. (CVE-2014-4652, Low)

* It was found that the espfix functionality could be bypassed by installing a 16-bit RW data segment into GDT instead of LDT (which espfix checks), and using that segment on the stack. A local, unprivileged user could potentially use this flaw to leak kernel stack addresses. (CVE-2014-8133, Low)

* An information leak flaw was found in the Linux kernel's IEEE 802.11 wireless networking implementation. When software encryption was used, a remote attacker could use this flaw to leak up to 8 bytes of plaintext. (CVE-2014-8709, Low)

* It was found that the Linux kernel KVM subsystem's sysenter instruction emulation was not sufficient. An unprivileged guest user could use this flaw to escalate their privileges by tricking the hypervisor to emulate a SYSENTER instruction in 16-bit mode, if the guest OS did not initialize the SYSENTER model-specific registers (MSRs). Note: Certified guest operating systems for Scientific Linux with KVM do initialize the SYSENTER MSRs and are thus not vulnerable to this issue when running on a KVM hypervisor. (CVE-2015-0239, Low)

The system must be rebooted for this update to take effect.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2015:2152 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux     operating system.

    * A flaw was found in the way the Linux kernel's file system implementation     handled rename operations in which the source was inside and the     destination was outside of a bind mount. A privileged user inside a     container could use this flaw to escape the bind mount and, potentially,     escalate their privileges on the system. (CVE-2015-2925, Important)

    * A race condition flaw was found in the way the Linux kernel's IPC     subsystem initialized certain fields in an IPC object structure that were     later used for permission checking before inserting the object into a     globally visible list. A local, unprivileged user could potentially use     this flaw to elevate their privileges on the system. (CVE-2015-7613,     Important)

    * It was found that reporting emulation failures to user space could lead     to either a local (CVE-2014-7842) or a L2->L1 (CVE-2010-5313) denial of     service. In the case of a local denial of service, an attacker must have     access to the MMIO area or be able to access an I/O port. (CVE-2010-5313,     CVE-2014-7842, Moderate)

    * A flaw was found in the way the Linux kernel's KVM subsystem handled     non-canonical addresses when emulating instructions that change the RIP     (for example, branches or calls). A guest user with access to an I/O or     MMIO region could use this flaw to crash the guest. (CVE-2014-3647,     Moderate)

    * It was found that the Linux kernel memory resource controller's (memcg)     handling of OOM (out of memory) conditions could lead to deadlocks.
    An attacker could use this flaw to lock up the system. (CVE-2014-8171,     Moderate)

    * A race condition flaw was found between the chown and execve system     calls. A local, unprivileged user could potentially use this flaw to     escalate their privileges on the system. (CVE-2015-3339, Moderate)

    * A flaw was discovered in the way the Linux kernel's TTY subsystem handled     the tty shutdown phase. A local, unprivileged user could use this flaw to     cause a denial of service on the system. (CVE-2015-4170, Moderate)

    * A NULL pointer dereference flaw was found in the SCTP implementation.
    A local user could use this flaw to cause a denial of service on the system     by triggering a kernel panic when creating multiple sockets in parallel     while the system did not have the SCTP module loaded. (CVE-2015-5283,     Moderate)

    * A flaw was found in the way the Linux kernel's perf subsystem retrieved     userlevel stack traces on PowerPC systems. A local, unprivileged user could     use this flaw to cause a denial of service on the system. (CVE-2015-6526,     Moderate)

    * A flaw was found in the way the Linux kernel's Crypto subsystem handled     automatic loading of kernel modules. A local user could use this flaw to     load any installed kernel module, and thus increase the attack surface of     the running kernel. (CVE-2013-7421, CVE-2014-9644, Low)

    * An information leak flaw was found in the way the Linux kernel changed     certain segment registers and thread-local storage (TLS) during a context     switch. A local, unprivileged user could use this flaw to leak the user     space TLS base address of an arbitrary process. (CVE-2014-9419, Low)

    * It was found that the Linux kernel KVM subsystem's sysenter instruction     emulation was not sufficient. An unprivileged guest user could use this     flaw to escalate their privileges by tricking the hypervisor to emulate a     SYSENTER instruction in 16-bit mode, if the guest OS did not initialize the     SYSENTER model-specific registers (MSRs). Note: Certified guest operating     systems for Red Hat Enterprise Linux with KVM do initialize the SYSENTER     MSRs and are thus not vulnerable to this issue when running on a KVM     hypervisor. (CVE-2015-0239, Low)

    * A flaw was found in the way the Linux kernel handled the securelevel     functionality after performing a kexec operation. A local attacker could     use this flaw to bypass the security mechanism of the     securelevel/secureboot combination. (CVE-2015-7837, Low)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Updated kernel packages that fix multiple security issues, address several hundred bugs, and add numerous enhancements are now available as part of the ongoing support and maintenance of Red Hat Enterprise Linux version 7. This is the second regular update.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

* A flaw was found in the way the Linux kernel's file system implementation handled rename operations in which the source was inside and the destination was outside of a bind mount. A privileged user inside a container could use this flaw to escape the bind mount and, potentially, escalate their privileges on the system.
(CVE-2015-2925, Important)

* A race condition flaw was found in the way the Linux kernel's IPC subsystem initialized certain fields in an IPC object structure that were later used for permission checking before inserting the object into a globally visible list. A local, unprivileged user could potentially use this flaw to elevate their privileges on the system.
(CVE-2015-7613, Important)

* It was found that reporting emulation failures to user space could lead to either a local (CVE-2014-7842) or a L2->L1 (CVE-2010-5313) denial of service. In the case of a local denial of service, an attacker must have access to the MMIO area or be able to access an I/O port. (CVE-2010-5313, CVE-2014-7842, Moderate)

* A flaw was found in the way the Linux kernel's KVM subsystem handled non-canonical addresses when emulating instructions that change the RIP (for example, branches or calls). A guest user with access to an I/O or MMIO region could use this flaw to crash the guest.
(CVE-2014-3647, Moderate)

* It was found that the Linux kernel memory resource controller's (memcg) handling of OOM (out of memory) conditions could lead to deadlocks. An attacker could use this flaw to lock up the system.
(CVE-2014-8171, Moderate)

* A race condition flaw was found between the chown and execve system calls. A local, unprivileged user could potentially use this flaw to escalate their privileges on the system. (CVE-2015-3339, Moderate)

* A flaw was discovered in the way the Linux kernel's TTY subsystem handled the tty shutdown phase. A local, unprivileged user could use this flaw to cause a denial of service on the system. (CVE-2015-4170, Moderate)

* A NULL pointer dereference flaw was found in the SCTP implementation. A local user could use this flaw to cause a denial of service on the system by triggering a kernel panic when creating multiple sockets in parallel while the system did not have the SCTP module loaded. (CVE-2015-5283, Moderate)

* A flaw was found in the way the Linux kernel's perf subsystem retrieved userlevel stack traces on PowerPC systems. A local, unprivileged user could use this flaw to cause a denial of service on the system. (CVE-2015-6526, Moderate)

* A flaw was found in the way the Linux kernel's Crypto subsystem handled automatic loading of kernel modules. A local user could use this flaw to load any installed kernel module, and thus increase the attack surface of the running kernel. (CVE-2013-7421, CVE-2014-9644, Low)

* An information leak flaw was found in the way the Linux kernel changed certain segment registers and thread-local storage (TLS) during a context switch. A local, unprivileged user could use this flaw to leak the user space TLS base address of an arbitrary process.
(CVE-2014-9419, Low)

* It was found that the Linux kernel KVM subsystem's sysenter instruction emulation was not sufficient. An unprivileged guest user could use this flaw to escalate their privileges by tricking the hypervisor to emulate a SYSENTER instruction in 16-bit mode, if the guest OS did not initialize the SYSENTER model-specific registers (MSRs). Note: Certified guest operating systems for Red Hat Enterprise Linux with KVM do initialize the SYSENTER MSRs and are thus not vulnerable to this issue when running on a KVM hypervisor.
(CVE-2015-0239, Low)

* A flaw was found in the way the Linux kernel handled the securelevel functionality after performing a kexec operation. A local attacker could use this flaw to bypass the security mechanism of the securelevel/secureboot combination. (CVE-2015-7837, Low)

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
84936	RHEL 6 : kernel (RHSA-2015:1272)	Nessus	Red Hat Local Security Checks	2015/7/23	2025/3/20	high
87090	Oracle Linux 7 : kernel (ELSA-2015-2152)	Nessus	Oracle Linux Local Security Checks	2015/11/30	2026/2/9	medium
81192	Fedora 21 : kernel-3.18.5-201.fc21 (2015-1657)	Nessus	Fedora Local Security Checks	2015/2/6	2021/1/11	high
81219	Fedora 20 : kernel-3.18.5-101.fc20 (2015-1672)	Nessus	Fedora Local Security Checks	2015/2/9	2021/1/11	high
81568	Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-2515-1)	Nessus	Ubuntu Local Security Checks	2015/2/27	2021/1/19	medium
81571	Ubuntu 14.10 : linux vulnerabilities (USN-2518-1)	Nessus	Ubuntu Local Security Checks	2015/2/27	2021/1/19	medium
85118	Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2015-3053)	Nessus	Oracle Linux Local Security Checks	2015/7/30	2026/2/9	high
85198	Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20150722)	Nessus	Scientific Linux Local Security Checks	2015/8/4	2021/1/14	medium
86972	RHEL 7 : kernel (RHSA-2015:2152)	Nessus	Red Hat Local Security Checks	2015/11/20	2024/11/4	high
87135	CentOS 7 : kernel (CESA-2015:2152)	Nessus	CentOS Local Security Checks	2015/12/2	2021/1/4	high

检测

插件搜索

high

medium

high

high

medium

medium

high

medium

high

high