#ubuntu

Ubuntu Security Notice 6924-1 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

Ubuntu Security Notice 6921-1 - Benedict Schlüter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde discovered that an untrusted hypervisor could inject malicious #VC interrupts and compromise the security guarantees of AMD SEV-SNP. This flaw is known as WeSee. A local attacker in control of the hypervisor could use this to expose sensitive information or possibly execute arbitrary code in the trusted execution environment. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

Ubuntu Security Notice 6923-1 - Benedict Schlüter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde discovered that an untrusted hypervisor could inject malicious #VC interrupts and compromise the security guarantees of AMD SEV-SNP. This flaw is known as WeSee. A local attacker in control of the hypervisor could use this to expose sensitive information or possibly execute arbitrary code in the trusted execution environment. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

Ubuntu Security Notice 6922-1 - It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel when modifying certain settings values through debugfs. A privileged local attacker could use this to cause a denial of service. Chenyuan Yang discovered that the Unsorted Block Images flash device volume management subsystem did not properly validate logical eraseblock sizes in certain situations. An attacker could possibly use this to cause a denial of service.

Ubuntu Security Notice 6920-1 - It was discovered that EDK II was not properly performing bounds checks in Tianocompress, which could lead to a buffer overflow. An authenticated user could use this issue to potentially escalate their privileges via local access. It was discovered that EDK II had an insufficient memory write check in the SMM service, which could lead to a page fault occurring. An authenticated user could use this issue to potentially escalate their privileges, disclose information and/or create a denial of service via local access.

Ubuntu Security Notice 6916-1 - It was discovered that Lua did not properly generate code when "_ENV" is constant. An attacker could possibly use this issue to cause a denial of service or execute arbitrary unstrusted lua code. It was discovered that Lua did not properly handle C stack overflows during error handling. An attacker could possibly use this issue to cause a denial of service.

Pharmacy Management System version 1.0 suffers from an ignored default credential vulnerability.

Online Payment Hub System version 1.0 suffers from an ignored default credential vulnerability.

Ubuntu Security Notice 6918-1 - It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel when modifying certain settings values through debugfs. A privileged local attacker could use this to cause a denial of service. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

Ubuntu Security Notice 6919-1 - Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not properly handle certain error conditions, leading to a NULL pointer dereference. A local attacker could possibly trigger this vulnerability to cause a denial of service. It was discovered that the ATA over Ethernet driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code.