hw/rdma/vmw/pvrdma_cmd.c in QEMU allows create_cq and create_qp memory leaks because errors are mishandled.

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 remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-4556 advisory.

  - A flaw was found in qemu Media Transfer Protocol (MTP) before version 3.1.0. A path traversal in the in     usb_mtp_write_data function in hw/usb/dev-mtp.c due to an improper filename sanitization. When the guest     device is mounted in read-write mode, this allows to read/write arbitrary files which may lead do DoS     scenario OR possibly lead to code execution on the host. (CVE-2018-16867)

  - hw/rdma/vmw/pvrdma_main.c in QEMU does not implement a read operation (such as uar_read by analogy to     uar_write), which allows attackers to cause a denial of service (NULL pointer dereference).
    (CVE-2018-20191)

  - A flaw was found in qemu Media Transfer Protocol (MTP). The code opening files in usb_mtp_get_object and     usb_mtp_get_partial_object and directories in usb_mtp_object_readdir doesn't consider that the underlying     filesystem may have changed since the time lstat(2) was called in usb_mtp_object_alloc, a classical     TOCTTOU problem. An attacker with write access to the host filesystem shared with a guest can use this     property to navigate the host filesystem in the context of the QEMU process and read any file the QEMU     process has access to. Access to the filesystem may be local or via a network share protocol such as CIFS.
    (CVE-2018-16872)

  - hw/rdma/rdma_backend.c in QEMU allows guest OS users to trigger out-of-bounds access via a PvrdmaSqWqe     ring element with a large num_sge value. (CVE-2018-20124)

  - QEMU can have an infinite loop in hw/rdma/vmw/pvrdma_dev_ring.c because return values are not checked (and
    -1 is mishandled). (CVE-2018-20216)

  - hw/rdma/vmw/pvrdma_cmd.c in QEMU allows attackers to cause a denial of service (NULL pointer dereference     or excessive memory allocation) in create_cq_ring or create_qp_rings. (CVE-2018-20125)

  - hw/rdma/vmw/pvrdma_cmd.c in QEMU allows create_cq and create_qp memory leaks because errors are     mishandled. (CVE-2018-20126)

  - pvrdma_realize in hw/rdma/vmw/pvrdma_main.c in QEMU has a Memory leak after an initialisation error.
    (CVE-2018-20123)

  - In QEMU 3.0.0, tcp_emu in slirp/tcp_subr.c has a heap-based buffer overflow. (CVE-2019-6778)

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-2019-4518 advisory.

    - usb-mtp: use O_NOFOLLOW and O_CLOEXEC. (Gerd Hoffmann)  [Orabug: 29056673]  {CVE-2018-16872}
    - pvrdma: add uar_read routine (Prasad J Pandit)   {CVE-2018-20191}
    - pvrdma: release ring object in case of an error (Prasad J Pandit)  [Orabug: 29171822]  {CVE-2018-20126}
    - pvrdma: check number of pages when creating rings (Prasad J Pandit)  [Orabug: 29171821]     {CVE-2018-20125}
    - pvrdma: check return value from pvrdma_idx_ring_has_ routines (Prasad J Pandit)  [Orabug: 29171820]     {CVE-2018-20216}
    - rdma: remove unused VENDOR_ERR_NO_SGE macro (Prasad J Pandit)  [Orabug: 29121181]  {CVE-2018-20124}
    - rdma: check num_sge does not exceed MAX_SGE (Prasad J Pandit)  [Orabug: 29121181]  {CVE-2018-20124}

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 for qemu fixes the following issues :

qemu was updated to v3.1.1.1, a stable, bug-fix-only release, which includes 2 fixes we already carry, as well as one additional use- after-free fix in slirp. (CVE-2018-20126 bsc#1119991, CVE-2019-14378 bsc#1143794, and CVE-2019-15890 bsc#1149811 respectively)

Security issues fixed :

  - CVE-2019-12068: Fixed potential DOS in lsi scsi     controller emulation (bsc#1146873)

  - CVE-2019-11135: Expose taa-no 'feature', indicating CPU     does not have the TSX Async Abort vulnerability.
    (bsc#1152506)

  - CVE-2018-12207: Expose pschange-mc-no 'feature',     indicating CPU does not have the page size change     machine check vulnerability (bsc#1117665)

Other issues fixed :

  - Change how this bug gets fixed (bsc#1144087)

  - Disable file locking in the Xen PV disk backend to avoid     locking issues with PV domUs during migration. The     issues triggered by the locking can not be properly     handled in libxl. The locking introduced in qemu-2.10     was removed again in qemu-4.0. (bsc#1079730,     bsc#1098403, bsc#1111025, bsc#1145427, bsc#1145774)

  - Feature support for vfio-ccw dasd ipl (bsc#1145379     jira-SLE-6132)

  - Additional hardware instruction support for s390, also     update qemu linux headers to 5.2-rc1 (bsc#1145436     jira-SLE-6237)

This update was imported from the SUSE:SLE-15-SP1:Update update project.

This update for qemu fixes the following issues :

  - Patch queue updated from     https://gitlab.suse.de/virtualization/qemu.git SLE15

  - Fix use-after-free in slirp (CVE-2018-20126 bsc#1119991)

  - Fix potential DOS in lsi scsi controller emulation     (CVE-2019-12068 bsc#1146873)

  - Expose taa-no 'feature', indicating CPU does not have     the TSX Async Abort vulnerability. (CVE-2019-11135     bsc#1152506)

  - Expose pschange-mc-no 'feature', indicating CPU does not     have the page size change machine check vulnerability     (CVE-2018-12207 bsc#1155812)

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

This update for qemu fixes the following issues :

Remove a backslash '\' escape character from 80-qemu-ga.rules (bsc#1153358) Unlike sles 15 or newer guests, The udev rule file of qemu guest agent in sles 12 sp4 or newer guest only needs one escape character.

Fix use-after-free in slirp (CVE-2018-20126 bsc#1119991)

Fix potential DOS in lsi scsi controller emulation (CVE-2019-12068 bsc#1146873)

Expose taa-no 'feature', indicating CPU does not have the TSX Async Abort vulnerability. (CVE-2019-11135 bsc#1152506)

Expose pschange-mc-no 'feature', indicating CPU does not have the page size change machine check vulnerability (CVE-2018-12207 bsc#1155812)

Patch queue updated from https://gitlab.suse.de/virtualization/qemu.git SLE12-SP4

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 :

qemu was updated to v3.1.1.1, a stable, bug-fix-only release, which includes 2 fixes we already carry, as well as one additional use- after-free fix in slirp. (CVE-2018-20126 bsc#1119991, CVE-2019-14378 bsc#1143794, and CVE-2019-15890 bsc#1149811 respectively)

Security issues fixed :

CVE-2019-12068: Fixed potential DOS in lsi scsi controller emulation (bsc#1146873)

CVE-2019-11135: Expose taa-no 'feature', indicating CPU does not have the TSX Async Abort vulnerability. (bsc#1152506)

CVE-2018-12207: Expose pschange-mc-no 'feature', indicating CPU does not have the page size change machine check vulnerability (bsc#1117665)

Other issues fixed: Change how this bug gets fixed (bsc#1144087)

Disable file locking in the Xen PV disk backend to avoid locking issues with PV domUs during migration. The issues triggered by the locking can not be properly handled in libxl. The locking introduced in qemu-2.10 was removed again in qemu-4.0. (bsc#1079730, bsc#1098403, bsc#1111025, bsc#1145427, bsc#1145774)

Feature support for vfio-ccw dasd ipl (bsc#1145379 jira-SLE-6132)

Additional hardware instruction support for s390, also update qemu linux headers to 5.2-rc1 (bsc#1145436 jira-SLE-6237)

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 :

Patch queue updated from https://gitlab.suse.de/virtualization/qemu.git SLE15

Fix use-after-free in slirp (CVE-2018-20126 bsc#1119991)

Fix potential DOS in lsi scsi controller emulation (CVE-2019-12068 bsc#1146873)

Expose taa-no 'feature', indicating CPU does not have the TSX Async Abort vulnerability. (CVE-2019-11135 bsc#1152506)

Expose pschange-mc-no 'feature', indicating CPU does not have the page size change machine check vulnerability (CVE-2018-12207 bsc#1155812)

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 Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3923-1 advisory.

    Michael Hanselmann discovered that QEMU incorrectly handled the Media Transfer Protocol (MTP). An attacker     inside the guest could use this issue to read or write arbitrary files and cause a denial of service, or     possibly execute arbitrary code. This issue only affected Ubuntu 18.10. (CVE-2018-16867)

    Michael Hanselmann discovered that QEMU incorrectly handled the Media Transfer Protocol (MTP). An attacker     inside the guest could use this issue to read arbitrary files, contrary to expectations. This issue only     affected Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-16872)

    Zhibin Hu discovered that QEMU incorrectly handled the Plan 9 File System support. An attacker inside the     guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2018-19489)

    Li Quang and Saar Amar discovered multiple issues in the QEMU PVRDMA device. An attacker inside the guest     could use these issues to cause a denial of service, or possibly execute arbitrary code. This issue only     affected Ubuntu 18.10. These issues were resolved by disabling PVRDMA support in Ubuntu 18.10.
    (CVE-2018-20123, CVE-2018-20124, CVE-2018-20125, CVE-2018-20126, CVE-2018-20191, CVE-2018-20216)

    Michael Hanselmann discovered that QEMU incorrectly handled certain i2c commands. A local attacker could     possibly use this issue to read QEMU process memory. This issue only affected Ubuntu 18.04 LTS and Ubuntu     18.10. (CVE-2019-3812)

    It was discovered that QEMU incorrectly handled the Slirp networking back-end. An attacker inside the     guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute     arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would     be isolated by the libvirt AppArmor profile. (CVE-2019-6778)

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

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

ID	Name	Product	Family	Severity
180740	Oracle Linux 7 : qemu (ELSA-2019-4585)	Nessus	Oracle Linux Local Security Checks	critical
180708	Oracle Linux 7 : qemu (ELSA-2019-4556)	Nessus	Oracle Linux Local Security Checks	high
180666	Oracle Linux 7 : qemu (ELSA-2019-4518)	Nessus	Oracle Linux Local Security Checks	medium
131064	openSUSE Security Update : qemu (openSUSE-2019-2510)	Nessus	SuSE Local Security Checks	high
131059	openSUSE Security Update : qemu (openSUSE-2019-2505)	Nessus	SuSE Local Security Checks	medium
130954	SUSE SLED12 / SLES12 Security Update : qemu (SUSE-SU-2019:2956-1)	Nessus	SuSE Local Security Checks	medium
130953	SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2019:2955-1)	Nessus	SuSE Local Security Checks	high
130952	SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2019:2954-1)	Nessus	SuSE Local Security Checks	medium
123457	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : QEMU vulnerabilities (USN-3923-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2018-20126

medium

Tenable Plugins

critical

high

medium

high

medium

medium

high

medium

high