#ubuntu

An issue found in TCPrewrite v.4.4.3 allows a remote attacker to cause a denial of service via the ports2PORT function at the portmap.c:69 endpoint.

Ubuntu Security Notice 5954-1 - Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. Lukas Bernhard discovered that Firefox did not properly manage memory when invalidating JIT code while following an iterator. An attacker could potentially exploits this issue to cause a denial of service.

Ubuntu Security Notice 5958-1 - It was discovered that FFmpeg could be made to dereference a null pointer. An attacker could possibly use this to cause a denial of service via application crash. These issues only affected Ubuntu 16.04 ESM, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. It was discovered that FFmpeg could be made to access an out-of-bounds frame by the Apple RPZA encoder. An attacker could possibly use this to cause a denial of service via application crash or access sensitive information. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.10.

Ubuntu Security Notice 5957-1 - Cody Sixteen discovered that LibreCAD incorrectly handled memory when parsing DXF files. An attacker could use this issue to cause LibreCAD to crash, leading to a denial of service. This issue only affected Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. Lilith of Cisco Talos discovered that LibreCAD incorrectly handled memory when parsing DWG files. An attacker could use this issue to cause LibreCAD to crash, leading to a denial of service, or possibly execute arbitrary code.

Ubuntu Security Notice 5956-1 - Dawid Golunski discovered that PHPMailer was not properly escaping user input data used as arguments to functions executed by the system shell. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 16.04 ESM. It was discovered that PHPMailer was not properly escaping characters in certain fields of the code_generator.php example code. An attacker could possibly use this issue to conduct cross-site scripting attacks. This issue was only fixed in Ubuntu 16.04 ESM and Ubuntu 18.04 ESM.

Ubuntu Security Notice 5956-2 - USN-5956-1 fixed vulnerabilities in PHPMailer. It was discovered that the fix for CVE-2017-11503 was incomplete. This update fixes the problem. Dawid Golunski discovered that PHPMailer was not properly escaping user input data used as arguments to functions executed by the system shell. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 16.04 ESM.

Ubuntu Security Notice 5855-2 - USN-5855-1 fixed a vulnerability in ImageMagick. This update provides the corresponding update for Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 22.10. 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.

Ubuntu Security Notice 5955-1 - It was discovered that Emacs did not properly manage certain files when using htmlfontify functionality. A local attacker could possibly use this issue to cause a denial of service, or possibly execute arbitrary commands.

Ubuntu Security Notice 5952-1 - Sebastian Poeplau discovered that OpenJPEG 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 or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS.

Ubuntu Security Notice 5953-1 - It was discovered that IPython incorrectly processed REST API POST requests. An attacker could possibly use this issue to launch a cross-site request forgery attack and leak user's sensitive information. This issue only affected Ubuntu 14.04 ESM. It was discovered that IPython did not properly manage cross user temporary files. A local attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 18.04 ESM and Ubuntu 20.04 ESM.