Ubuntu security

USN-5337-1: Linux kernel vulnerabilities It was discovered that the BPF verifier in the Linux kernel did not properly restrict pointer types in certain situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-23222) Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the Linux kernel did not properly restrict access to the cgroups v1 release_agent feature. A local attacker could use this to gain administrative privileges. (CVE-2022-0492) Jürgen Groß discovered that the Xen subsystem within the Linux kernel did not adequately limit the number of events driver domains (unprivileged PV backends) could send to other guest VMs. An attacker in a driver domain could use this to cause a denial of service in other guest VMs. (CVE-2021-28711, CVE-2021-28712, CVE-2021-28713) Jürgen Groß discovered that the Xen network backend [ more… ]

USN-5335-1: ImageMagick vulnerabilities It was discovered that ImageMagick incorrectly handled certain values when processing XPM image data or large images. If a user or automated system using ImageMagick were tricked into opening a specially crafted image, an attacker could exploit this to cause a denial of service or possibly execute code with the privileges of the user invoking the program. (CVE-2020-19667, CVE-2017-13144) Suhwan Song discovered that ImageMagick incorrectly handled memory when processing PNG,PALM,MIFF image data. If a user or automated system using ImageMagick were tricked into opening a specially crafted image, an attacker could exploit this to cause a denial of service or possibly execute code with the privileges of the user invoking the program. (CVE-2020-25664, CVE-2020-25665, CVE-2020-25674, CVE-2020-27753) Suhwan Song discovered that ImageMagick incorrectly handled certain values when processing image data. If a user or automated system using ImageMagick [ more… ]

USN-5333-2: Apache HTTP Server vulnerabilities USN-5333-1 fixed several vulnerabilities in Apache. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Chamal De Silva discovered that the Apache HTTP Server mod_lua module incorrectly handled certain crafted request bodies. A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of service. (CVE-2022-22719) James Kettle discovered that the Apache HTTP Server incorrectly closed inbound connection when certain errors are encountered. A remote attacker could possibly use this issue to perform an HTTP Request Smuggling attack. (CVE-2022-22720) It was discovered that the Apache HTTP Server incorrectly handled large LimitXMLRequestBody settings on certain platforms. In certain configurations, a remote attacker could use this issue to cause the server to crash, resulting in a denial of service, or possibly execute [ more… ]

USN-5332-2: Bind vulnerability USN-5332-1 fixed a vulnerability in Bind. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Xiang Li, Baojun Liu, Chaoyi Lu, and Changgen Zou discovered that Bind incorrectly handled certain bogus NS records when using forwarders. A remote attacker could possibly use this issue to manipulate cache results. (CVE-2021-25220) Source: USN-5332-2: Bind vulnerability

USN-5321-2: Firefox vulnerabilities USN-5321-1 fixed vulnerabilities in Firefox. The update didn’t include arm64 because of a regression. This update provides the corresponding update for arm64. This update also removes Yandex and Mail.ru as optional search providers in the drop-down search menu. Original advisory details: 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, spoof the browser UI, bypass security restrictions, obtain sensitive information, or execute arbitrary code. (CVE-2022-0843, CVE-2022-26381, CVE-2022-26382, CVE-2022-26383, CVE-2022-26384, CVE-2022-26385) A TOCTOU bug was discovered when verifying addon signatures during install. A local attacker could potentially exploit this to trick a user into installing an addon with an invalid signature. (CVE-2022-26387) Source: USN-5321-2: Firefox vulnerabilities