Vulnerabilities > Canonical > Ubuntu Linux > Critical

DATE CVE VULNERABILITY TITLE RISK
2018-02-27 CVE-2017-18206 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products
In utils.c in zsh before 5.4, symlink expansion had a buffer overflow.
network
low complexity
zsh canonical CWE-119
critical
9.8
2018-02-27 CVE-2018-7548 NULL Pointer Dereference vulnerability in multiple products
In subst.c in zsh through 5.4.2, there is a NULL pointer dereference when using ${(PA)...} on an empty array result.
network
low complexity
zsh canonical CWE-476
critical
9.8
2018-02-19 CVE-2018-7225 Integer Overflow or Wraparound vulnerability in multiple products
An issue was discovered in LibVNCServer through 0.9.11.
network
low complexity
libvncserver-project debian canonical redhat CWE-190
critical
9.8
2018-02-19 CVE-2018-5379 Double Free vulnerability in multiple products
The Quagga BGP daemon (bgpd) prior to version 1.2.3 can double-free memory when processing certain forms of UPDATE message, containing cluster-list and/or unknown attributes.
network
low complexity
quagga debian canonical redhat siemens CWE-415
critical
9.8
2018-02-15 CVE-2018-7053 Use After Free vulnerability in multiple products
An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1.
network
low complexity
irssi debian canonical CWE-416
critical
9.8
2018-02-15 CVE-2018-7054 Use After Free vulnerability in multiple products
An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1.
network
low complexity
irssi canonical debian CWE-416
critical
9.8
2018-02-09 CVE-2018-6871 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.
network
low complexity
libreoffice debian canonical redhat
critical
9.8
2018-02-08 CVE-2018-6789 Classic Buffer Overflow vulnerability in multiple products
An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1.
network
low complexity
exim debian canonical CWE-120
critical
9.8
2018-01-24 CVE-2018-1000005 Out-of-bounds Read vulnerability in multiple products
libcurl 7.49.0 to and including 7.57.0 contains an out bounds read in code handling HTTP/2 trailers.
network
low complexity
haxx debian canonical CWE-125
critical
9.1
2018-01-24 CVE-2018-1000007 libcurl 7.1 through 7.57.0 might accidentally leak authentication data to third parties.
network
low complexity
haxx debian canonical redhat fujitsu
critical
9.8