#ubuntu

Ubuntu Security Notice 5855-4 - USN-5855-1 fixed vulnerabilities in ImageMagick. This update provides the corresponding updates for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. It was discovered that ImageMagick incorrectly handled certain PNG images. If a user or automated system were tricked into opening a specially crafted PNG file, an attacker could use this issue to cause ImageMagick to stop responding, resulting in a denial of service, or possibly obtain the contents of arbitrary files by including them into images.

An issue was discovered in GitLab Community and Enterprise Edition before 11.11.8, 12 before 12.0.6, and 12.1 before 12.1.6. Gitaly allows injection of command-line flags. This sometimes leads to privilege escalation or remote code execution.

In OpenBMC 2.9, crafted IPMI messages allow an attacker to cause a denial of service to the BMC via the netipmid (IPMI lan+) interface.

X2CRM Open Source Sales CRM 6.6 and 6.9 was discovered to contain a stored cross-site scripting (XSS) vulnerability via the Create Action function, aka an index.php/actions/update URI.

Ubuntu Security Notice 6021-1 - It was discovered that Chromium did not properly manage memory in several components. A remote attacker could possibly use this issue to corrupt memory via a crafted HTML page, resulting in a denial of service, or possibly execute arbitrary code. It was discovered that Chromium could be made to access memory out of bounds in WebHID. A remote attacker could possibly use this issue to corrupt memory via a malicious HID device, resulting in a denial of service, or possibly execute arbitrary code.

Ubuntu Security Notice 6020-1 - It was discovered that the System V IPC implementation in the Linux kernel did not properly handle large shared memory counts. A local attacker could use this to cause a denial of service. It was discovered that the KVM VMX implementation in the Linux kernel did not properly handle indirect branch prediction isolation between L1 and L2 VMs. An attacker in a guest VM could use this to expose sensitive information from the host OS or other guest VMs.

Ubuntu Security Notice 6018-1 - Chen Lu, Lei Wang, and YiQi Sun discovered a privilege escalation vulnerability in apport-cli when viewing crash reports and unprivileged users are allowed to run sudo less. A local attacker on a specially configured system could use this to escalate their privilege.

Ubuntu Security Notice 6019-1 - It was discovered that Flask-CORS did not properly escape paths before evaluating resource rules. An attacker could possibly use this to expose sensitive information.

Ubuntu Security Notice 6017-1 - Hadrien Perrineau discovered that Ghostscript incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service, or possibly execute arbitrary code.

Ubuntu Security Notice 6016-1 - It was discovered that thenify incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to execute arbitrary code.