ubuntu-usn

USN-6043-1: Linux kernel vulnerabilities It was discovered that the Traffic-Control Index (TCINDEX) implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix for this CVE, kernel support for the TCINDEX classifier has been removed. (CVE-2023-1829) It was discovered that the OverlayFS implementation in the Linux kernel did not properly handle copy up operation in some conditions. A local attacker could possibly use this to gain elevated privileges. (CVE-2023-0386) Source: USN-6043-1: Linux kernel vulnerabilities

USN-6010-3: Firefox regressions USN-6010-1 fixed vulnerabilities and USN-6010-2 fixed minor regressions in Firefox. The update introduced several minor regressions. This update fixes the problem. We apologize for the inconvenience. 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, obtain sensitive information across domains, or execute arbitrary code. (CVE-2023-29537, CVE-2023-29540, CVE-2023-29543, CVE-2023-29544, CVE-2023-29547, CVE-2023-29548, CVE-2023-29549, CVE-2023-29550, CVE-2023-29551) Irvan Kurniawan discovered that Firefox did not properly manage fullscreen notifications using a combination of window.open, fullscreen requests, window.name assignments, and setInterval calls. An attacker could potentially exploit this issue to perform spoofing attacks. (CVE-2023-29533) Lukas Bernhard discovered that Firefox did not properly manage memory when doing Garbage Collector compaction. An attacker could potentially exploits this issue to cause a [ more… ]

USN-6039-1: OpenSSL vulnerabilities It was discovered that OpenSSL was not properly managing file locks when processing policy constraints. If a user or automated system were tricked into processing a certificate chain with specially crafted policy constraints, a remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 22.10. (CVE-2022-3996) David Benjamin discovered that OpenSSL was not properly performing the verification of X.509 certificate chains that include policy constraints, which could lead to excessive resource consumption. If a user or automated system were tricked into processing a specially crafted X.509 certificate chain that includes policy constraints, a remote attacker could possibly use this issue to cause a denial of service. (CVE-2023-0464) David Benjamin discovered that OpenSSL was not properly handling invalid certificate policies in leaf certificates, which would result [ more… ]

USN-6040-1: Linux kernel (HWE) vulnerabilities It was discovered that the Traffic-Control Index (TCINDEX) implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-1281) It was discovered that the OverlayFS implementation in the Linux kernel did not properly handle copy up operation in some conditions. A local attacker could possibly use this to gain elevated privileges. (CVE-2023-0386) Haowei Yan discovered that a race condition existed in the Layer 2 Tunneling Protocol (L2TP) implementation in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-4129) It was discovered that the network queuing discipline implementation in the Linux kernel contained a null pointer dereference in some situations. A local attacker could use this to cause [ more… ]

USN-6038-1: Go vulnerabilities It was discovered that the Go net/http module incorrectly handled Transfer-Encoding headers in the HTTP/1 client. A remote attacker could possibly use this issue to perform an HTTP Request Smuggling attack. (CVE-2022-1705) It was discovered that Go did not properly manage memory under certain circumstances. An attacker could possibly use this issue to cause a panic resulting into a denial of service. (CVE-2022-1962, CVE-2022-27664, CVE-2022-28131, CVE-2022-30630, CVE-2022-30631, CVE-2022-30632, CVE-2022-30633, CVE-2022-30635, CVE-2022-32189, CVE-2022-41715, CVE-2022-41717, CVE-2023-24534, CVE-2023-24537) It was discovered that Go did not properly implemented the maximum size of file headers in Reader.Read. An attacker could possibly use this issue to cause a panic resulting into a denial of service. (CVE-2022-2879) It was discovered that the Go net/http module incorrectly handled query parameters in requests forwarded by ReverseProxy. A remote attacker could possibly use this issue to perform [ more… ]