Ubuntu security

USN-5548-1: libxml2 vulnerability It was discovered that libxml2 incorrectly handled certain XML files. An attacker could possibly use this issue to execute arbitrary code. Source: USN-5548-1: libxml2 vulnerability

USN-5546-2: OpenJDK 8 vulnerabilities USN-5546-1 fixed vulnerabilities in OpenJDK. This update provides the corresponding updates for Ubuntu 16.04 ESM. Original advisory details: Neil Madden discovered that OpenJDK did not properly verify ECDSA signatures. A remote attacker could possibly use this issue to insert, edit or obtain sensitive information. This issue only affected OpenJDK 17 and OpenJDK 18. (CVE-2022-21449) It was discovered that OpenJDK incorrectly limited memory when compiling a specially crafted XPath expression. An attacker could possibly use this issue to cause a denial of service. This issue was fixed in OpenJDK 8 and OpenJDK 18. USN-5388-1 and USN-5388-2 addressed this issue in OpenJDK 11 and OpenJDK 17. (CVE-2022-21426) It was discovered that OpenJDK incorrectly handled converting certain object arguments into their textual representations. An attacker could possibly use this issue to cause a denial of service. This issue was [ more… ]

USN-5551-1: mod-wsgi vulnerability It was discovered that mod-wsgi did not correctly remove the X-Client-IP header when processing requests from untrusted proxies. A remote attacker could use this issue to pass the header to WSGI applications, contrary to expectations. Source: USN-5551-1: mod-wsgi vulnerability

USN-5550-1: GnuTLS vulnerabilities It was discovered that GnuTLS incorrectly handled certain memory operations. A remote attacker could possibly use this issue to cause GnuTLS to crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. (CVE-2021-4209) It was discovered that GnuTLS incorrectly handled the verification of certain pkcs7 signatures. A remote attacker could use this issue to cause GnuTLS to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2022-2509) Source: USN-5550-1: GnuTLS vulnerabilities

USN-5549-1: Django vulnerability It was discovered that Django incorrectly handled certain FileResponse. An attacker could possibly use this issue to expose sensitive information or gain access over user machine. Source: USN-5549-1: Django vulnerability