#ubuntu

Ubuntu Security Notice 5392-1 - It was discovered that Mutt incorrectly handled certain requests. An attacker could possibly use this issue to expose sensitive information. This issue only affected Ubuntu 20.04 LTS. It was discovered that Mutt incorrectly handled certain input. An attacker could possibly use this issue to cause a crash, or expose sensitive information.

Ubuntu Security Notice 5394-1 - A large number of security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary code execution.

Ubuntu Security Notice 5371-2 - USN-5371-1 fixed several vulnerabilities in nginx. This update provides the fix for CVE-2021-3618 for Ubuntu 22.04 LTS. It was discovered that nginx Lua module mishandled certain inputs. An attacker could possibly use this issue to perform an HTTP Request Smuggling attack. This issue only affects Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.

Ubuntu Security Notice 5393-1 - Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, conduct spoofing attacks, or execute arbitrary code. It was discovered that Thunderbird ignored OpenPGP revocation when importing a revoked key in some circumstances. An attacker could potentially exploit this by tricking the user into trusting the authenticity of a message or tricking them into use a revoked key to send an encrypted message.

This Metasploit module exploits CVE-2022-0543, a Lua-based Redis sandbox escape. The vulnerability was introduced by Debian and Ubuntu Redis packages that insufficiently sanitized the Lua environment. The maintainers failed to disable the package interface, allowing attackers to load arbitrary libraries. On a typical redis deployment (not docker), this module achieves execution as the redis user. Debian/Ubuntu packages run Redis using systemd with the "MemoryDenyWriteExecute" permission, which limits some of what an attacker can do. For example, staged meterpreter will fail when attempting to use mprotect. As such, stageless meterpreter is the preferred payload. Redis can be configured with authentication or not. This module will work with either configuration (provided you provide the correct authentication details). This vulnerability could theoretically be exploited across a few architectures: i386, arm, ppc, etc. However, the module only supports x86_64, which is likely to be the m...

Ubuntu Security Notice 5391-1 - Nicolas Iooss discovered that libsepol incorrectly handled memory when handling policies. An attacker could possibly use this issue to cause a crash, resulting in a denial of service, or possibly execute arbitrary code. It was discovered that libsepol incorrectly handled memory when handling policies. An attacker could possibly use this issue to cause a crash, resulting in a denial of service, or possibly execute arbitrary code.

Ubuntu Security Notice 5376-3 - USN-5376-1 fixed vulnerabilities in Git, some patches were missing to properly fix the issue. This update fixes the problem. 俞晨东 discovered that Git incorrectly handled certain repository paths in platforms with multiple users support. An attacker could possibly use this issue to run arbitrary commands.

Ubuntu Security Notice 5366-2 - USN-5366-1 fixed several vulnerabilities in FriBidi. This update provides the corresponding updates for Ubuntu 22.04 LTS. It was discovered that FriBidi incorrectly handled processing of input strings resulting in memory corruption. An attacker could use this issue to cause FriBidi to crash, resulting in a denial of service, or potentially execute arbitrary code.

Ubuntu Security Notice 5390-1 - David Bouman discovered that the netfilter subsystem in the Linux kernel did not properly validate passed user register indices. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. David Bouman discovered that the netfilter subsystem in the Linux kernel did not initialize memory in some situations. A local attacker could use this to expose sensitive information.

In cifs-utils through 6.14, a stack-based buffer overflow when parsing the mount.cifs ip= command-line argument could lead to local attackers gaining root privileges.