#ubuntu

Ubuntu Security Notice 5787-1 - It was discovered that Libksba incorrectly handled parsing CRL signatures. A remote attacker could use this issue to cause Libksba to crash, resulting in a denial of service, or possibly execute arbitrary code.

SimpleRmiDiscoverer is a JMX RMI scanning tool for unsecured (without enabled authentication) instances of JAVA JMX. It does not use standard Java RMI/JMX classes like other available tools but rather communicates directly over TCP. The tool is written in Java and is very useful in red teaming operations because JVM is still ubiquitous in corporate environments. It can be executed by unprivileged (non-admin) users.

Ubuntu Security Notice 5786-1 - It was discovered that GNOME Files incorrectly handled certain filenames. An attacker could possibly use this issue to cause GNOME Files to crash, leading to a denial of service.

Ubuntu Security Notice 5785-1 - It was discovered that FreeRADIUS incorrectly handled multiple EAP-pwd handshakes. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS. Shane Guan discovered that FreeRADIUS incorrectly handled memory when checking unknown SIM option sent by EAP-SIM supplicant. An attacker could possibly use this issue to cause a denial of service on the server. This issue only affected Ubuntu 16.04 ESM, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.

Ubuntu Security Notice 5784-1 - It was discovered that usbredir incorrectly handled memory when serializing large amounts of data in the case of a slow or blocked destination. An attacker could possibly use this issue to cause applications using usbredir to crash, resulting in a denial of service, or possibly execute arbitrary code.

lxc-user-nic in lxc through 5.0.1 is installed setuid root, and may allow local users to infer whether any file exists, even within a protected directory tree, because "Failed to open" often indicates that a file does not exist, whereas "does not refer to a network namespace path" often indicates that a file exists. NOTE: this is different from CVE-2018-6556 because the CVE-2018-6556 fix design was based on the premise that "we will report back to the user that the open() failed but the user has no way of knowing why it failed"; however, in many realistic cases, there are no plausible reasons for failing except that the file does not exist.

Hello everyone! Great news for my open source Scanvus project! You can now perform vulnerability checks on Linux hosts and docker images not only using the Vulners.com API, but also with the Vulns.io VM API. It’s especially nice that all the code to support the new API was written and contributed by colleagues from Vulns.io. […]

Enlightenment version 0.25.3 suffers from a local privilege escalation vulnerability.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the upload[] POST parameter before concatenating it to an SQL query in get-data-create-upload-v10.php. This may allow malicious users with at least author privilege to leak sensitive information from the site's database.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the option_id GET parameter before concatenating it to an SQL query in export-images-data.php. This may allow malicious users with at least author privilege to leak sensitive information from the site's database.