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CVE-2018-7550

QEMU: i386: multiboot OOB access while loading kernel image

The load_multiboot function in hw/i386/multiboot.c in Quick Emulator (aka QEMU) allows local guest OS users to execute arbitrary code on the QEMU host via a mh_load_end_addr value greater than mh_bss_end_addr, which triggers an out-of-bounds read or write memory access.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Qemu and 1 more
Products
Ubuntu Linux Debian Linux Qemu and 8 more
CVE-2018-7225

libvncserver: Improper input sanitization in rfbProcessClientNormalMessage in rfbserver.c

An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.

CVSS 3.0 · 9.8 Critical EPSS 6.1% KEV · Not listed
Vendors
Canonical Debian Libvncserver Project and 1 more
Products
Ubuntu Linux Debian Linux Libvncserver and 7 more
CVE-2018-7208

binutils: Improper bounds check in coffgen.c:coff_pointerize_aux() allows for denial of service when parsing a crafted COFF file

In the coff_pointerize_aux function in coffgen.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.30, an index is not validated, which allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted file, as demonstrated by objcopy of a COFF object.

CVSS 3.0 · 7.8 High EPSS 2.2% KEV · Not listed
Vendors
Gnu Redhat
Products
Binutils Enterprise Linux Enterprise Linux Desktop and 2 more
CVE-2018-6927

kernel: Integer overflow in futex.c:futux_requeue can lead to denial of service or unspecified impact

The futex_requeue function in kernel/futex.c in the Linux kernel before 4.14.15 might allow attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact by triggering a negative wake or requeue value.

CVSS 3.0 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 1 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 9 more
CVE-2018-6871

libreoffice: Remote arbitrary file disclosure vulnerability via WEBSERVICE formula

LibreOffice before 5.4.5 and 6.x before 6.0.1 allows remote attackers to read arbitrary files via =WEBSERVICE calls in a document, which use the COM.MICROSOFT.WEBSERVICE function.

CVSS 3.0 · 9.8 Critical EPSS 22.8% KEV · Not listed
Vendors
Canonical Debian Libreoffice and 1 more
Products
Ubuntu Linux Debian Linux Libreoffice and 7 more
CVE-2018-6798

perl: heap read overflow in regexec.c

An issue was discovered in Perl 5.22 through 5.26. Matching a crafted locale dependent regular expression can cause a heap-based buffer over-read and potentially information disclosure.

CVSS 3.0 · 7.5 High EPSS 3.9% KEV · Not listed
Vendors
Canonical Debian Perl and 1 more
Products
Ubuntu Linux Debian Linux Perl and 3 more
CVE-2018-6797

perl: heap write overflow in regcomp.c

An issue was discovered in Perl 5.18 through 5.26. A crafted regular expression can cause a heap-based buffer overflow, with control over the bytes written.

CVSS 3.0 · 9.8 Critical EPSS 6.5% KEV · Not listed
Vendors
Canonical Debian Perl and 1 more
Products
Ubuntu Linux Debian Linux Perl and 3 more
CVE-2018-6764

libvirt: guest could inject executable code via libnss_dns.so loaded by libvirt_lxc before init

util/virlog.c in libvirt does not properly determine the hostname on LXC container startup, which allows local guest OS users to bypass an intended container protection mechanism and execute arbitrary commands via a crafted NSS module.

CVSS 3.0 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Redhat
Products
Ubuntu Linux Debian Linux Enterprise Linux and 5 more
CVE-2018-6574

golang: arbitrary code execution during "go get" via C compiler options

Go before 1.8.7, Go 1.9.x before 1.9.4, and Go 1.10 pre-releases before Go 1.10rc2 allow "go get" remote command execution during source code build, by leveraging the gcc or clang plugin feature, because -fplugin= and -plugin= arguments were not blocked.

CVSS 3.0 · 7.8 High EPSS 7.6% KEV · Not listed
Vendors
Debian Golang Redhat
Products
Debian Linux Go Devtools and 5 more
CVE-2018-6560

flatpak: sandbox escape in D-Bus filtering by a crafted authentication handshake

In dbus-proxy/flatpak-proxy.c in Flatpak before 0.8.9, and 0.9.x and 0.10.x before 0.10.3, crafted D-Bus messages to the host can be used to break out of the sandbox, because whitespace handling in the proxy is not identical to whitespace handling in the daemon.

CVSS 3.0 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Flatpak Redhat
Products
Flatpak Enterprise Linux Enterprise Linux Desktop and 5 more
CVE-2018-6485

glibc: Integer overflow in posix_memalign in memalign functions

An integer overflow in the implementation of the posix_memalign in memalign functions in the GNU C Library (aka glibc or libc6) 2.26 and earlier could cause these functions to return a pointer to a heap area that is too small, potentially leading to heap corruption.

CVSS 3.0 · 9.8 Critical EPSS 4.7% KEV · Not listed
Vendors
Gnu Netapp Oracle and 1 more
Products
Glibc Cloud Backup Data Ontap Edge and 13 more
CVE-2018-6179

chromium-browser: Local file information leak in Extensions

Insufficient enforcement of file access permission in the activeTab case in Extensions in Google Chrome prior to 68.0.3440.75 allowed an attacker who convinced a user to install a malicious extension to access files on the local file system via a crafted Chrome Extension.

CVSS 3.0 · 6.5 Medium EPSS 1.2% KEV · Not listed
Vendors
Debian Google Redhat
Products
Debian Linux Chrome Enterprise Linux Desktop and 3 more
CVE-2018-6178

chromium-browser: UI spoof in Extensions

Eliding from the wrong side in an infobar in DevTools in Google Chrome prior to 68.0.3440.75 allowed an attacker who convinced a user to install a malicious extension to Hide Chrome Security UI via a crafted Chrome Extension.

CVSS 3.0 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Google Redhat
Products
Debian Linux Chrome Enterprise Linux Desktop and 3 more
CVE-2018-6175

chromium-browser: URL spoof in Omnibox

Incorrect handling of confusable characters in URL Formatter in Google Chrome prior to 68.0.3440.75 allowed a remote attacker to perform domain spoofing via IDN homographs via a crafted domain name.

CVSS 3.0 · 6.5 Medium EPSS 1.4% KEV · Not listed
Vendors
Debian Google Redhat
Products
Debian Linux Chrome Enterprise Linux Desktop and 3 more
CVE-2018-6173

chromium-browser: URL spoof in Omnibox

Incorrect handling of confusable characters in URL Formatter in Google Chrome prior to 68.0.3440.75 allowed a remote attacker to perform domain spoofing via IDN homographs via a crafted domain name.

CVSS 3.0 · 6.5 Medium EPSS 1.4% KEV · Not listed
Vendors
Debian Google Redhat
Products
Debian Linux Chrome Enterprise Linux Desktop and 3 more
CVE-2018-6172

chromium-browser: URL spoof in Omnibox

Incorrect handling of confusable characters in URL Formatter in Google Chrome prior to 68.0.3440.75 allowed a remote attacker to perform domain spoofing via IDN homographs via a crafted domain name.

CVSS 3.0 · 6.5 Medium EPSS 1.4% KEV · Not listed
Vendors
Debian Google Redhat
Products
Debian Linux Chrome Enterprise Linux Desktop and 3 more
CVE-2018-6169

chromium-browser: Permissions bypass in extension installation

Lack of timeout on extension install prompt in Extensions in Google Chrome prior to 68.0.3440.75 allowed a remote attacker to trigger installation of an unwanted extension via a crafted HTML page.

CVSS 3.0 · 6.5 Medium EPSS 1.4% KEV · Not listed
Vendors
Debian Google Redhat
Products
Debian Linux Chrome Enterprise Linux Desktop and 3 more