This update for kvm fixes the following issues :

Security issues fixed :

CVE-2018-10839: Fixed NE2000 NIC emulation support that is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use this flaw to crash the Qemu process resulting in DoS (bsc#1110910).

CVE-2018-15746: Fixed qemu-seccomp.c that might allow local OS guest users to cause a denial of service (guest crash) by leveraging mishandling of the seccomp policy for threads other than the main thread (bsc#1106222).

CVE-2018-17958: Fixed a Buffer Overflow in rtl8139_do_receive in hw/net/rtl8139.c because an incorrect integer data type is used (bsc#1111006).

CVE-2018-17962: Fixed a Buffer Overflow in pcnet_receive in hw/net/pcnet.c because an incorrect integer data type is used (bsc#1111010).

CVE-2018-17963: Fixed qemu_deliver_packet_iov in net/net.c that accepts packet sizes greater than INT_MAX, which allows attackers to cause a denial of service or possibly have unspecified other impact.
(bsc#1111013)

CVE-2018-18849: Fixed an out of bounds memory access issue that was found in the LSI53C895A SCSI Host Bus Adapter emulation while writing a message in lsi_do_msgin. It could occur during migration if the 'msg_len' field has an invalid value. A user/process could use this flaw to crash the Qemu process resulting in DoS (bsc#1114422).

CVE-2018-18438: Fixed integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value (bnc#1112185).

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.

This update for qemu fixes the following issues :

Security issues fixed :

CVE-2018-10839: Fixed NE2000 NIC emulation support that is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use this flaw to crash the Qemu process resulting in DoS (bsc#1110910).

CVE-2018-15746: Fixed qemu-seccomp.c that might allow local OS guest users to cause a denial of service (guest crash) by leveraging mishandling of the seccomp policy for threads other than the main thread (bsc#1106222).

CVE-2018-17958: Fixed a Buffer Overflow in rtl8139_do_receive in hw/net/rtl8139.c because an incorrect integer data type is used (bsc#1111006).

CVE-2018-17962: Fixed a Buffer Overflow in pcnet_receive in hw/net/pcnet.c because an incorrect integer data type is used (bsc#1111010).

CVE-2018-17963: Fixed qemu_deliver_packet_iov in net/net.c that accepts packet sizes greater than INT_MAX, which allows attackers to cause a denial of service or possibly have unspecified other impact.
(bsc#1111013)

CVE-2018-18849: Fixed an out of bounds memory access issue that was found in the LSI53C895A SCSI Host Bus Adapter emulation while writing a message in lsi_do_msgin. It could occur during migration if the 'msg_len' field has an invalid value. A user/process could use this flaw to crash the Qemu process resulting in DoS (bsc#1114422).

Non-security issues fixed: Improving disk performance for qemu on xen (bsc#1100408)

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.

Several vulnerabilities were found in QEMU, a fast processor emulator :

CVE-2018-11806

It was found that the SLiRP networking implementation could use a wrong size when reallocating its buffers, which can be exploited by a priviledged user on a guest to cause denial of service or possibly arbitrary code execution on the host system.

CVE-2018-18849

It was found that the LSI53C895A SCSI Host Bus Adapter emulation was susceptible to an out of bounds memory access, which could be leveraged by a malicious guest user to crash the QEMU process.

CVE-2018-20815

A heap buffer overflow was found in the load_device_tree function, which could be used by a malicious user to potentially execute arbitrary code with the priviledges of the QEMU process.

CVE-2019-9824

William Bowling discovered that the SLiRP networking implementation did not handle some messages properly, which could be triggered to leak memory via crafted messages.

For Debian 8 'Jessie', these problems have been fixed in version 1:2.1+dfsg-12+deb8u11.

We recommend that you upgrade your qemu packages.

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

This update for qemu fixes the following issues :

Security issues fixed :

  - CVE-2018-10839: Fixed NE2000 NIC emulation support that     is vulnerable to an integer overflow, which could lead     to buffer overflow issue. It could occur when receiving     packets over the network. A user inside guest could use     this flaw to crash the Qemu process resulting in DoS     (bsc#1110910).

  - CVE-2018-15746: Fixed qemu-seccomp.c that might allow     local OS guest users to cause a denial of service (guest     crash) by leveraging mishandling of the seccomp policy     for threads other than the main thread (bsc#1106222).

  - CVE-2018-16847: Fixed an OOB heap buffer r/w access     issue that was found in the NVM Express Controller     emulation in QEMU. It could occur in nvme_cmb_ops     routines in nvme device. A guest user/process could use     this flaw to crash the QEMU process resulting in DoS or     potentially run arbitrary code with privileges of the     QEMU process (bsc#1114529).

  - CVE-2018-17958: Fixed a Buffer Overflow in     rtl8139_do_receive in hw/net/rtl8139.c because an     incorrect integer data type is used (bsc#1111006).

  - CVE-2018-17962: Fixed a Buffer Overflow in pcnet_receive     in hw/net/pcnet.c because an incorrect integer data type     is used (bsc#1111010).

  - CVE-2018-17963: Fixed qemu_deliver_packet_iov in     net/net.c that accepts packet sizes greater than     INT_MAX, which allows attackers to cause a denial of     service or possibly have unspecified other impact.
    (bsc#1111013)

  - CVE-2018-18849: Fixed an out of bounds memory access     issue that was found in the LSI53C895A SCSI Host Bus     Adapter emulation while writing a message in     lsi_do_msgin. It could occur during migration if the     'msg_len' field has an invalid value. A user/process     could use this flaw to crash the Qemu process resulting     in DoS (bsc#1114422).

Non-security issues fixed :

  - Fix slowness in arm32 emulation (bsc#1112499).

  - In order to improve spectre mitigation for s390x, add a     new feature in the QEMU cpu model to provide the etoken     cpu feature for guests (bsc#1107489).

This update was imported from the SUSE:SLE-15:Update update project.

This update for xen fixes the following issues :

Security issues fixed :

CVE-2019-6778: Fixed a heap buffer overflow in tcp_emu() found in slirp (bsc#1123157).

CVE-2017-13672: Fixed an out of bounds read access during display update (bsc#1056336).

Fixed an issue which could allow malicious or buggy guests with passed through PCI devices to be able to escalate their privileges, crash the host, or access data belonging to other guests. Additionally memory leaks were also possible (bsc#1126140)

Fixed a race condition issue which could allow malicious PV guests to escalate their privilege to that of the hypervisor (bsc#1126141).

CVE-2018-18849: Fixed an out of bounds msg buffer access which could lead to denial of service (bsc#1114423).

Fixed an issue which could allow a malicious unprivileged guest userspace process to escalate its privilege to that of other userspace processes in the same guest and potentially thereby to that of the guest operating system (bsc#1126201).

CVE-2018-17958: Fixed an integer overflow leading to a buffer overflow in the rtl8139 component (bsc#1111007)

CVE-2018-19967: Fixed HLE constructs that allowed guests to lock up the host, resulting in a Denial of Service (DoS). (XSA-282) (bsc#1114988)

CVE-2018-19665: Fixed an integer overflow resulting in memory corruption in various Bluetooth functions, allowing this to crash qemu process resulting in Denial of Service (DoS). (bsc#1117756).

CVE-2019-9824: Fixed an information leak in SLiRP networking implementation which could allow a user/process to read uninitialised stack memory contents (bsc#1129623).

CVE-2018-19961, CVE-2018-19962: Fixed an issue related to insufficient TLB flushing with AMD IOMMUs, which potentially allowed a guest to escalate its privileges, may cause a Denial of Service (DoS) affecting the entire host, or may be able to access data it is not supposed to access. (XSA-275) (bsc#1115040)

CVE-2018-19966: Fixed an issue related to a previous fix for XSA-240, which conflicted with shadow paging and allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS) (XSA-280) (bsc#1115047).

CVE-2018-10839: Fixed an integer overflow leading to a buffer overflow in the ne2000 component (bsc#1110924).

CVE-2018-19965: Fixed an issue related to the INVPCID instruction in case non-canonical addresses are accessed, which may allow a guest to cause Xen to crash, resulting in a Denial of Service (DoS) affecting the entire host. (XSA-279) (bsc#1115045).

Fixed an issue which could allow malicious 64bit PV guests to cause a host crash (bsc#1127400).

Fixed an issue which could allow malicious PV guests may cause a host crash or gain access to data pertaining to other guests.Additionally, vulnerable configurations are likely to be unstable even in the absence of an attack (bsc#1126198).

Fixed multiple access violations introduced by XENMEM_exchange hypercall which could allow a single PV guest to leak arbitrary amounts of memory, leading to a denial of service (bsc#1126192).

CVE-2018-17963: Fixed an integer overflow in relation to large packet sizes, leading to a denial of service (DoS). (bsc#1111014).

Fixed an issue which could allow a malicious or buggy x86 PV guest kernels can mount a Denial of Service attack affecting the whole system (bsc#1126196).

Fixed an issue which could allow an untrusted PV domain with access to a physical device to DMA into its own pagetables leading to privilege escalation (bsc#1126195).

CVE-2018-17962: Fixed an integer overflow leading to a buffer overflow in the pcnet component (bsc#1111011)

CVE-2018-18438: Fixed an integer overflow in ccid_card_vscard_read function which could lead to memory corruption (bsc#1112188).

Other issues fixed: Upstream bug fixes (bsc#1027519)

Fixed an issue where XEN SLE12-SP1 domU hangs on SLE12-SP3 HV1108940 (bsc#1108940).

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.

This update for xen fixes the following issues :

Security vulnerabilities fixed :

CVE-2018-19961, CVE-2018-19962: Fixed an issue related to insufficient TLB flushing with AMD IOMMUs, which potentially allowed a guest to escalate its privileges, may cause a Denial of Service (DoS) affecting the entire host, or may be able to access data it is not supposed to access. (XSA-275) (bsc#1115040)

CVE-2018-19965: Fixed an issue related to the INVPCID instruction in case non-canonical addresses are accessed, which may allow a guest to cause Xen to crash, resulting in a Denial of Service (DoS) affecting the entire host. (XSA-279) (bsc#1115045)

CVE-2018-19966: Fixed an issue related to a previous fix for XSA-240, which conflicted with shadow paging and allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS) (XSA-280) (bsc#1115047)

CVE-2018-19967: Fixed HLE constructs that allowed guests to lock up the host, resulting in a Denial of Service (DoS). (XSA-282) (bsc#1114988)

CVE-2018-19665: Fixed an integer overflow resulting in memory corruption in various Bluetooth functions, allowing this to crash qemu process resulting in Denial of Service (DoS). (bsc#1117756).

CVE-2018-18849: Fixed an out of bounds memory access in the LSI53C895A SCSI host bus adapter emulation, which allowed a user and/or process to crash the qemu process resulting in a Denial of Service (DoS).
(bsc#1114423)

Fixed an integer overflow in ccid_card_vscard_read(), which allowed for memory corruption. (bsc#1112188)

CVE-2017-13672: Fixed an out of bounds read access during display update (bsc#1056336)

CVE-2018-17958: Fixed an integer overflow leading to a buffer overflow in the rtl8139 component (bsc#1111007)

CVE-2018-17962: Fixed an integer overflow leading to a buffer overflow in the pcnet component (bsc#1111011)

CVE-2018-17963: Fixed an integer overflow in relation to large packet sizes, leading to a denial of service (DoS). (bsc#1111014)

CVE-2018-10839: Fixed an integer overflow leading to a buffer overflow in the ne2000 component (bsc#1110924)

Other bugs fixed: Fixed an issue related to a domU hang on SLE12-SP3 HV (bsc#1108940)

Upstream bug fixes (bsc#1027519)

Fixed crashing VMs when migrating between dom0 hosts (bsc#1031382)

Fixed an issue with xpti=no-dom0 not working as expected (bsc#1105528)

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.

This update for qemu fixes the following issues :

Security issues fixed :

CVE-2018-10839: Fixed NE2000 NIC emulation support that is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use this flaw to crash the Qemu process resulting in DoS (bsc#1110910).

CVE-2018-15746: Fixed qemu-seccomp.c that might allow local OS guest users to cause a denial of service (guest crash) by leveraging mishandling of the seccomp policy for threads other than the main thread (bsc#1106222).

CVE-2018-17958: Fixed a Buffer Overflow in rtl8139_do_receive in hw/net/rtl8139.c because an incorrect integer data type is used (bsc#1111006).

CVE-2018-17962: Fixed a Buffer Overflow in pcnet_receive in hw/net/pcnet.c because an incorrect integer data type is used (bsc#1111010).

CVE-2018-17963: Fixed qemu_deliver_packet_iov in net/net.c that accepts packet sizes greater than INT_MAX, which allows attackers to cause a denial of service or possibly have unspecified other impact.
(bsc#1111013)

CVE-2018-18849: Fixed an out of bounds memory access issue that was found in the LSI53C895A SCSI Host Bus Adapter emulation while writing a message in lsi_do_msgin. It could occur during migration if the 'msg_len' field has an invalid value. A user/process could use this flaw to crash the Qemu process resulting in DoS (bsc#1114422).

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.

Multiple security issues were discovered in QEMU, a fast processor emulator, which could result in denial of service, the execution of arbitrary code or information disclosure.

In addition this update backports support to passthrough the new md-clear CPU flag added in the intel-microcode update shipped in DSA 4447 to x86-based guests.

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-4520 advisory.

    - lsi53c895a: check message length value is valid (Prasad J Pandit)  [Orabug: 28873208]  {CVE-2018-18849}
    - 9p: fix QEMU crash when renaming files (Greg Kurz)  [Orabug: 28971701]  {CVE-2018-19489}
    - 9p: take write lock on fid path updates (CVE-2018-19364) (Greg Kurz)  [Orabug: 28949917]     {CVE-2018-19364}
    - nvme: fix out-of-bounds access to the CMB (Paolo Bonzini)  [Orabug: 28885514]  {CVE-2018-16847}

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.

- Fix cpu model crash on AMD hosts (bz #1640140)

  - CVE-2018-15746: seccomp blacklist is not applied to all     threads (bz #1618357)

  - Fix assertion in address_space_stw_le_cached (bz     #1644728)

  - CVE-2018-10839: ne2000: fix possible out of bound access     (bz #1636429)

  - CVE-2018-17958: rtl8139: fix possible out of bound     access (bz #1636729)

  - CVE-2018-17962: pcnet: fix possible buffer overflow (bz     #1636775)

  - CVE-2018-17963: net: ignore packet size greater than     INT_MAX (bz #1636782)

  - CVE-2018-18849: lsi53c895a: OOB msg buffer access leads     to DoS (bz #1644977)

  - CVE-2018-18954: ppc64: Out-of-bounds r/w stack access in     pnv_lpc_do_eccb (bz #1645442)

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

This update for xen fixes the following issues :

Update to Xen 4.11.1 bug fix release (bsc#1027519)

CVE-2018-17963: Fixed an integer overflow issue in the QEMU emulator, which could occur when a packet with large packet size is processed. A user inside a guest could have used this flaw to crash the qemu process resulting in a Denial of Service (DoS). (bsc#1111014)

CVE-2018-18849: Fixed an out of bounds memory access in the LSI53C895A SCSI host bus adapter emulation, which allowed a user and/or process to crash the qemu process resulting in a Denial of Service (DoS).
(bsc#1114423)

CVE-2018-18883: Fixed an issue related to inproper restriction of nested VT-x, which allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS). (XSA-278) (bsc#1114405)

CVE-2018-19961, CVE-2018-19962: Fixed an issue related to insufficient TLB flushing with AMD IOMMUs, which potentially allowed a guest to escalate its privileges, may cause a Denial of Service (DoS) affecting the entire host, or may be able to access data it is not supposed to access. (XSA-275) (bsc#1115040)

CVE-2018-19963: Fixed the allocation of pages used to communicate with external emulators, which may have cuased Xen to crash, resulting in a Denial of Service (DoS). (XSA-276) (bsc#1115043)

CVE-2018-19965: Fixed an issue related to the INVPCID instruction in case non-canonical addresses are accessed, which may allow a guest to cause Xen to crash, resulting in a Denial of Service (DoS) affecting the entire host. (XSA-279) (bsc#1115045)

CVE-2018-19966: Fixed an issue related to a previous fix for XSA-240, which conflicted with shadow paging and allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS) (XSA-280) (bsc#1115047)

CVE-2018-19967: Fixed HLE constructs that allowed guests to lock up the host, resulting in a Denial of Service (DoS). (XSA-282) (bsc#1114988)

CVE-2018-19964: Fixed the incorrect error handling of p2m page removals, which allowed a guest to cause a deadlock, resulting in a Denial of Service (DoS) affecting the entire host. (XSA-277) (bsc#1115044)

CVE-2018-19665: Fixed an integer overflow resulting in memory corruption in various Bluetooth functions, allowing this to crash qemu process resulting in Denial of Service (DoS). (bsc#1117756).

Other bugs fixed: Fixed an issue related to a domU hang on SLE12-SP3 HV (bsc#1108940)

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.

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-4585 advisory.

    - usb-mtp: use O_NOFOLLOW and O_CLOEXEC. (Gerd Hoffmann)  [Orabug: 29216656]  {CVE-2018-16872}
    - pvrdma: add uar_read routine (Prasad J Pandit)  [Orabug: 29216658]  {CVE-2018-20191}
    - pvrdma: release ring object in case of an error (Prasad J Pandit)  [Orabug: 29216659]  {CVE-2018-20126}
    - pvrdma: check number of pages when creating rings (Prasad J Pandit)  [Orabug: 29216666]     {CVE-2018-20125}
    - pvrdma: check return value from pvrdma_idx_ring_has_ routines (Prasad J Pandit)  [Orabug: 29216672]     {CVE-2018-20216}
    - rdma: remove unused VENDOR_ERR_NO_SGE macro (Prasad J Pandit)  [Orabug: 29216678]  {CVE-2018-20124}
    - rdma: check num_sge does not exceed MAX_SGE (Prasad J Pandit)  [Orabug: 29216678]  {CVE-2018-20124}
    - Document various CVEs as fixed (Mark Kanda)  [Orabug: 29212424]  {CVE-2017-10806} {CVE-2017-11334}     {CVE-2017-12809} {CVE-2017-13672} {CVE-2017-13673} {CVE-2017-13711} {CVE-2017-14167} {CVE-2017-15038}     {CVE-2017-15119} {CVE-2017-15124} {CVE-2017-15268} {CVE-2017-15289} {CVE-2017-16845} {CVE-2017-17381}     {CVE-2017-18030} {CVE-2017-18043} {CVE-2017-2630} {CVE-2017-2633} {CVE-2017-5715} {CVE-2017-5753}     {CVE-2017-5754} {CVE-2017-7471} {CVE-2017-7493} {CVE-2017-8112} {CVE-2017-8309} {CVE-2017-8379}     {CVE-2017-8380} {CVE-2017-9503} {CVE-2018-10839} {CVE-2018-11806} {CVE-2018-12617} {CVE-2018-15746}     {CVE-2018-16847} {CVE-2018-16867} {CVE-2018-17958} {CVE-2018-17962} {CVE-2018-17963} {CVE-2018-18849}     {CVE-2018-19364} {CVE-2018-19489} {CVE-2018-3639} {CVE-2018-5683} {CVE-2018-7550} {CVE-2018-7858}

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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In Qemu 3.0.0, lsi_do_msgin in hw/scsi/lsi53c895a.c allows out-of-bounds access by triggering an invalid     msg_len value. (CVE-2018-18849)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
119456	SUSE SLES11 Security Update : kvm (SUSE-SU-2018:3987-1)	Nessus	SuSE Local Security Checks	2018/12/6	2024/7/17	critical
119741	SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2018:4129-1)	Nessus	SuSE Local Security Checks	2018/12/18	2024/7/15	critical
124720	Debian DLA-1781-1 : qemu security update	Nessus	Debian Local Security Checks	2019/5/10	2024/5/24	critical
119491	openSUSE Security Update : qemu (openSUSE-2018-1483)	Nessus	SuSE Local Security Checks	2018/12/7	2024/7/17	critical
123389	openSUSE Security Update : qemu (openSUSE-2019-961)	Nessus	SuSE Local Security Checks	2019/3/27	2024/6/7	critical
123634	SUSE SLES12 Security Update : xen (SUSE-SU-2019:0827-1)	Nessus	SuSE Local Security Checks	2019/4/2	2024/6/6	critical
121004	SUSE SLES11 Security Update : xen (SUSE-SU-2019:13921-1)	Nessus	SuSE Local Security Checks	2019/1/8	2024/6/27	critical
119215	SUSE SLES12 Security Update : qemu (SUSE-SU-2018:3912-1)	Nessus	SuSE Local Security Checks	2018/11/27	2024/7/18	critical
119453	SUSE SLES12 Security Update : qemu (SUSE-SU-2018:3973-1)	Nessus	SuSE Local Security Checks	2018/12/6	2024/7/17	critical
119454	SUSE SLES11 Security Update : kvm (SUSE-SU-2018:3975-1)	Nessus	SuSE Local Security Checks	2018/12/6	2024/7/17	critical
125609	Debian DSA-4454-1 : qemu - security update	Nessus	Debian Local Security Checks	2019/5/31	2024/5/17	high
180717	Oracle Linux 7 : qemu (ELSA-2019-4520)	Nessus	Oracle Linux Local Security Checks	2023/9/7	2024/10/22	high
119872	SUSE SLES12 Security Update : qemu (SUSE-SU-2018:4237-1)	Nessus	SuSE Local Security Checks	2018/12/24	2024/7/12	critical
120587	Fedora 29 : 2:qemu (2018-87f2ace20d)	Nessus	Fedora Local Security Checks	2019/1/3	2024/7/2	critical
120983	SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2019:0003-1)	Nessus	SuSE Local Security Checks	2019/1/7	2024/6/27	critical
180740	Oracle Linux 7 : qemu (ELSA-2019-4585)	Nessus	Oracle Linux Local Security Checks	2023/9/7	2026/1/9	critical
222325	Linux Distros Unpatched Vulnerability : CVE-2018-18849	Nessus	Misc.	2025/3/4	2026/7/27	medium

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