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CVE-2018-10472

xen: Information leak via crafted user-supplied CDROM

An issue was discovered in Xen through 4.10.x allowing x86 HVM guest OS users (in certain configurations) to read arbitrary dom0 files via QMP live insertion of a CDROM, in conjunction with specifying the target file as the backing file of a snapshot.

CVSS 3.0 · 5.6 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Xen
Products
Debian Linux Xen
CVE-2018-10471

xen: x86 PV guest may crash Xen with XPTI

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (out-of-bounds zero write and hypervisor crash) via unexpected INT 80 processing, because of an incorrect fix for CVE-2017-5754.

CVSS 3.0 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Xen
Products
Debian Linux Xen
CVE-2017-2620

Qemu: display: cirrus: potential arbitrary code execution via cirrus_bitblt_cputovideo

Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.

CVSS 3.0 · 5.5 Medium EPSS 3.6% KEV · Not listed
Vendors
Citrix Debian Qemu and 2 more
Products
Xenserver Debian Linux Qemu and 9 more
CVE-2017-2615

Qemu: display: cirrus: oob access while doing bitblt copy backward mode

Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA emulator support is vulnerable to an out-of-bounds access issue. It could occur while copying VGA data via bitblt copy in backward mode. A privileged user inside a guest could use this flaw to crash the QEMU process resulting in DoS or potentially execute arbitrary code on the host with privileges of QEMU process on the host.

CVSS 3.0 · 5.5 Medium EPSS 3.6% KEV · Not listed
Vendors
Citrix Debian Qemu and 2 more
Products
Xenserver Debian Linux Qemu and 9 more
CVE-2015-6815

qemu: net: e1000: infinite loop issue

The process_tx_desc function in hw/net/e1000.c in QEMU before 2.4.0.1 does not properly process transmit descriptor data when sending a network packet, which allows attackers to cause a denial of service (infinite loop and guest crash) via unspecified vectors.

CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
Vendors
Arista Canonical Fedoraproject and 4 more
Products
Eos Ubuntu Linux Fedora and 8 more