#dos

Ubuntu Security Notice 5412-1 - Axel Chong discovered that curl incorrectly handled percent-encoded URL separators. A remote attacker could possibly use this issue to trick curl into using the wrong URL and bypass certain checks or filters. This issue only affected Ubuntu 22.04 LTS. Florian Kohnhuser discovered that curl incorrectly handled returning a TLS server's certificate chain details. A remote attacker could possibly use this issue to cause curl to stop responding, resulting in a denial of service.

Ubuntu Security Notice 5410-1 - Lenny Wang discovered that NSS incorrectly handled certain messages. A remote attacker could possibly use this issue to cause servers compiled with NSS to stop responding, resulting in a denial of service.

Ubuntu Security Notice 5259-3 - USN-5259-1 and USN-5259-2 fixed vulnerabilities in Cron. Unfortunately that update was incomplete and could introduce a regression. This update fixes the problem. It was discovered that the postinst maintainer script in Cron unsafely handled file permissions during package install or update operations. An attacker could possibly use this issue to perform a privilege escalation attack. Florian Weimer discovered that Cron incorrectly handled certain memory operations during crontab file creation. An attacker could possibly use this issue to cause a denial of service. It was discovered that Cron incorrectly handled user input during crontab file creation. An attacker could possibly use this issue to cause a denial of service. It was discovered that Cron contained a use-after-free vulnerability in its force_rescan_user function. An attacker could possibly use this issue to cause a denial of service.

Ubuntu Security Notice 5409-1 - It was discovered that libsndfile was incorrectly performing memory management operations and incorrectly using buffers when executing its FLAC codec. If a user or automated system were tricked into processing a specially crafted sound file, an attacker could possibly use this issue to cause a denial of service or obtain sensitive information.

New federal cybersecurity rules will set timelines for critical infrastructure sector organizations — those in chemical, manufacturing, healthcare, defense contracting, energy, financial, nuclear, or transportation — to report ransomware payments and cyberattacks to CISA. All parties have to comply for it to work and help protect assets.

Red Hat Security Advisory 2022-1810-01 - The libtiff packages contain a library of functions for manipulating Tagged Image File Format files. Issues addressed include buffer overflow and denial of service vulnerabilities.

Red Hat Security Advisory 2022-1988-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, denial of service, information leakage, integer overflow, memory leak, out of bounds read, out of bounds write, privilege escalation, and use-after-free vulnerabilities.

Red Hat Security Advisory 2022-1964-01 - Fetchmail is a remote mail retrieval and forwarding utility intended for use over on-demand TCP/IP links, like SLIP or PPP connections. Fetchmail supports every remote-mail protocol currently in use on the Internet for retrieval. Then Fetchmail forwards the mail through SMTP so the user can read it through their favorite mail client. Issues addressed include bypass, denial of service, and information leakage vulnerabilities.

A stack overflow vulnerability was found in the Intel HD Audio device (intel-hda) of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability. This flaw affects QEMU versions prior to 7.0.0.

A stack overflow vulnerability was found in the Intel HD Audio device (intel-hda) of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability. This flaw affects QEMU versions prior to 7.0.0.