#ubuntu

Ubuntu Security Notice 6299-1 - It was discovered that poppler incorrectly handled certain malformed PDF files. If a user or an automated system were tricked into opening a specially crafted PDF file, a remote attacker could possibly use this issue to cause a denial of service.

Ubuntu Security Notice 6294-2 - USN-6294-1 fixed vulnerabilities in HAProxy. This update provides the corresponding updates for Ubuntu 20.04 LTS. Ben Kallus discovered that HAProxy incorrectly handled empty Content-Length headers. A remote attacker could possibly use this issue to manipulate the payload and bypass certain restrictions.

Ubuntu Security Notice 6297-1 - It was discovered that Ghostscript incorrectly handled outputting certain PDF files. A local attacker could potentially use this issue to cause a crash, resulting in a denial of service.

Ubuntu Security Notice 6298-1 - Liu Zhu discovered that ZZIPlib 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 cause a denial of service. YiMing Liu discovered that ZZIPlib 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 cause a denial of service.

lrzip-next LZMA v23.01 was discovered to contain an access violation via the component /bz3_decode_block src/libbz3.c.

Ubuntu Security Notice 6296-1 - It was discovered that PostgreSQL incorrectly handled certain extension script substitutions. An attacker having database-level CREATE privileges can use this issue to execute arbitrary code as the bootstrap superuser. It was discovered that PostgreSQL incorrectly handled the MERGE command. A remote attacker could possibly use this issue to bypass certain UPDATE and SELECT policies. This issue only affected Ubuntu 23.04.

Ubuntu Security Notice 6295-1 - It was discovered that Podman incorrectly handled certain supplementary groups. An attacker could possibly use this issue to expose sensitive information or execute binary code.

A vulnerability in the CLI of Cisco ThousandEyes Enterprise Agent, Virtual Appliance installation type, could allow an authenticated, local attacker to elevate privileges to root on an affected device. This vulnerability is due to insufficient input validation of user-supplied CLI arguments. An attacker could exploit this vulnerability by authenticating to an affected device and using crafted commands at the prompt. A successful exploit could allow the attacker to execute arbitrary commands as root. The attacker must have valid credentials on the affected device.

A vulnerability in the CLI of Cisco ThousandEyes Enterprise Agent, Virtual Appliance installation type, could allow an authenticated, local attacker to elevate privileges on an affected device. This vulnerability is due to insufficient input validation by the operating system CLI. An attacker could exploit this vulnerability by issuing certain commands using sudo. A successful exploit could allow the attacker to view arbitrary files as root on the underlying operating system. The attacker must have valid credentials on the affected device.

Ubuntu Security Notice 6294-1 - Ben Kallus discovered that HAProxy incorrectly handled empty Content-Length headers. A remote attacker could possibly use this issue to manipulate the payload and bypass certain restrictions.