#ubuntu

Ubuntu Security Notice 6398-1 - It was discovered that ReadyMedia was vulnerable to DNS rebinding attacks. A remote attacker could possibly use this issue to trick the local DLNA server to leak information. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. It was discovered that ReadyMedia incorrectly handled certain HTTP requests using chunked transport encoding. A remote attacker could possibly use this issue to cause buffer overflows, resulting in out-of-bounds reads and writes.

Ubuntu Security Notice 6387-2 - Jana Hofmann, Emanuele Vannacci, Cedric Fournet, Boris Kopf, and Oleksii Oleksenko discovered that some AMD processors could leak stale data from division operations in certain situations. A local attacker could possibly use this to expose sensitive information. It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle L2CAP socket release, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

Ubuntu Security Notice 6397-1 - Daniel Moghimi discovered that some Intel Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions checks when handling HCI sockets. A physically proximate attacker could use this to cause a denial of service.

Ubuntu Security Notice 6396-1 - It was discovered that some AMD x86-64 processors with SMT enabled could speculatively execute instructions using a return address from a sibling thread. A local attacker could possibly use this to expose sensitive information. Daniel Moghimi discovered that some Intel Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information.

Ubuntu Security Notice 6361-2 - USN-6361-1 fixed a vulnerability in CUPS. This update provides the corresponding updates for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. It was discovered that CUPS incorrectly authenticated certain remote requests. A remote attacker could possibly use this issue to obtain recently printed documents.

Docker Desktop before 4.23.0 allows Access Token theft via a crafted extension icon URL. This issue affects Docker Desktop: before 4.23.0.

Docker Desktop before 4.12.0 is vulnerable to RCE via a crafted extension description or changelog. This issue affects Docker Desktop: before 4.12.0.

Ubuntu Security Notice 6190-2 - USN-6190-1 fixed a vulnerability in AccountsService. This update provides the corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Kevin Backhouse discovered that AccountsService incorrectly handled certain D-Bus messages. A local attacker could use this issue to cause AccountsService to crash, resulting in a denial of service, or possibly execute arbitrary code.

Ubuntu Security Notice 6365-2 - USN-6365-1 fixed a vulnerability in Open VM Tools. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. It was discovered that Open VM Tools incorrectly handled SAML tokens. A remote attacker could possibly use this issue to bypass SAML token signature verification and perform VMware Tools Guest Operations.

Ubuntu Security Notice 6394-1 - It was discovered that Python incorrectly handled certain scripts. An attacker could possibly use this issue to execute arbitrary code or cause a crash.