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USN-7894-2: EDK II regression

Ubuntu Security Advisories
2 days 3 hours ago
USN-7894-1 fixed vulnerabilities in EDK II. The update introduced a regression in the UEFI network boot. This update reverts the corresponding fixes for CVE-2023-45236 and CVE-2023-45237 pending further investigation. We apologize for the inconvenience. Original advisory details: It was discovered that EDK II was susceptible to a predictable TCP Initial Sequence Number. An attacker could possibly use this issue to gain unauthorized access. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 24.04 LTS. (CVE-2023-45236, CVE-2023-45237) It was discovered that EDK II incorrectly handled S3 sleep. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 24.04 LTS. (CVE-2024-1298) It was discovered that the EDK II PE/COFF loader incorrectly handled certain memory operations. An attacker could possibly use this issue to cause a denial of service, obtain sensitive information, or execute arbitrary code. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 24.04 LTS. (CVE-2024-38796) It was discovered that the EDK II PE image hashing function incorrectly handled certain memory operations. An attacker could possibly use this issue to cause a denial of service, or execute arbitrary code. (CVE-2024-38797) It was discovered that the EDK II BIOS incorrectly handled certain memory operations. An attacker could possibly use this issue to cause a denial of service. (CVE-2024-38805, CVE-2025-2295) It was discovered that EDK II incorrectly handled the enabling of MCE. An attacker could possibly use this issue to cause a denial of service, or execute arbitrary code. (CVE-2025-3770) It was discovered that the OpenSSL library embedded in EDK II contained multiple vulnerabilties. An attacker could possibly use these issues to cause a denial of service, obtain sensitive information, or execute arbitrary code. (CVE-2021-3712, CVE-2022-0778, CVE-2022-4304, CVE-2022-4450, CVE-2023-0215, CVE-2023-0286, CVE-2023-0464, CVE-2023-0465, CVE-2023-0466, CVE-2023-2650, CVE-2023-3446, CVE-2023-3817, CVE-2023-5678, CVE-2023-6237, CVE-2024-0727, CVE-2024-13176, CVE-2024-2511, CVE-2024-41996, CVE-2024-4741, CVE-2024-5535, CVE-2024-6119, CVE-2024-9143, CVE-2025-9232)

USN-7897-1: CUPS vulnerability

Ubuntu Security Advisories
3 days 2 hours ago
It was discovered that CUPS incorrectly handled input from users in the web configuration settings. An attacker could use this issue to insert malicious configuration options, causing a denial of service or possibly executing arbitrary code.

USN-7896-1: libxml2 vulnerabilities

Ubuntu Security Advisories
3 days 3 hours ago
It was discovered that the libxml2 Python bindings incorrectly handled certain return values. An attacker could possibly use this issue to cause libxml2 to crash, resulting in a denial of service. (CVE-2025-32414) It was discovered that libxml2 incorrectly handled certain memory operations. A remote attacker could possibly use this issue to cause libxml2 to crash, resulting in a denial of service. (CVE-2025-32415) It was discovered that libxslt, used by libxml2, incorrectly handled certain attributes. An attacker could use this issue to cause a crash, resulting in a denial of service, or possibly execute arbitrary code. This update adds a fix to libxml2 to mitigate the libxslt vulnerability. (CVE-2025-7425)

USN-7852-2: libxml2 vulnerability

Ubuntu Security Advisories
3 days 3 hours ago
USN-7582-1 fixed a vulnerability in libxml2. This update provides the corresponding fix for Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Original advisory details: It was discovered that libxslt, used by libxml2, incorrectly handled certain attributes. An attacker could use this issue to cause a crash, resulting in a denial of service, or possibly execute arbitrary code. This update adds a fix to libxml2 to mitigate the libxslt vulnerability.

USN-7895-1: WebKitGTK vulnerabilities

Ubuntu Security Advisories
3 days 4 hours ago
Several 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.