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Ubuntu Security Notice USN-6928-1

Ubuntu Security Notice 6928-1 - It was discovered that the Python ssl module contained a memory race condition when handling the APIs to obtain the CA certificates and certificate store statistics. This could possibly result in applications obtaining wrong results, leading to various SSL issues. It was discovered that the Python ipaddress module contained incorrect information about which IP address ranges were considered "private" or "globally reachable". This could possibly result in applications applying incorrect security policies.

Packet Storm
#vulnerability#ubuntu#ssl
Ubuntu Security Notice USN-6924-2

Ubuntu Security Notice 6924-2 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

Ubuntu Security Notice USN-6927-1

Ubuntu Security Notice 6927-1 - 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. Gui-Dong Han discovered that the software RAID driver in the Linux kernel contained a race condition, leading to an integer overflow vulnerability. A privileged attacker could possibly use this to cause a denial of service.

Ubuntu Security Notice USN-6923-2

Ubuntu Security Notice 6923-2 - 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 USN-6926-1

Ubuntu Security Notice 6926-1 - 黄思聪 discovered that the NFC Controller Interface implementation in the Linux kernel did not properly handle certain memory allocation failure conditions, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service. 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.

Ubuntu Security Notice USN-6925-1

Ubuntu Security Notice 6925-1 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.