Ubuntu Security Notice 5866-1 - It was discovered that Nova did not properly manage data logged into the log file. An attacker with read access to the service's logs could exploit this issue and may obtain sensitive information. This issue only affected Ubuntu 16.04 ESM and Ubuntu 18.04 LTS. It was discovered that Nova did not properly handle attaching and reattaching the encrypted volume. An attacker could possibly use this issue to perform a denial of service attack. This issue only affected Ubuntu 16.04 ESM.
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Ubuntu Security Notice 5865-1 - It was discovered that an out-of-bounds write vulnerability existed in the Video for Linux 2 implementation in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Pawan Kumar Gupta, Alyssa Milburn, Amit Peled, Shani Rehana, Nir Shildan and Ariel Sabba discovered that some Intel processors with Enhanced Indirect Branch Restricted Speculation did not properly handle RET instructions after a VM exits. A local attacker could potentially use this to expose sensitive information.
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Ubuntu Security Notice 5862-1 - It was discovered that an out-of-bounds write vulnerability existed in the Video for Linux 2 implementation in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Pawan Kumar Gupta, Alyssa Milburn, Amit Peled, Shani Rehana, Nir Shildan and Ariel Sabba discovered that some Intel processors with Enhanced Indirect Branch Restricted Speculation did not properly handle RET instructions after a VM exits. A local attacker could potentially use this to expose sensitive information.
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Ubuntu Security Notice 5861-1 - It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code. Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation in the Linux kernel contained multiple use-after-free vulnerabilities. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code.
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Ubuntu Security Notice 5860-1 - Kyle Zeng discovered that the sysctl implementation in the Linux kernel contained a stack-based buffer overflow. A local attacker could use this to cause a denial of service or execute arbitrary code. Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation in the Linux kernel contained multiple use-after-free vulnerabilities. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code.
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Ubuntu Security Notice 5863-1 - It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code. Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation in the Linux kernel contained multiple use-after-free vulnerabilities. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code.
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Ubuntu Security Notice 5848-1 - David Leadbeater discovered that less was not properly handling escape sequences when displaying raw control characters. A maliciously formed OSC 8 hyperlink could possibly be used by an attacker to cause a denial of service.
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Ubuntu Security Notice 5858-1 - Davide Ornaghi discovered that the netfilter subsystem in the Linux kernel did not properly handle VLAN headers in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the Netronome Ethernet driver in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
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Ubuntu Security Notice 5859-1 - Davide Ornaghi discovered that the netfilter subsystem in the Linux kernel did not properly handle VLAN headers in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the Netronome Ethernet driver in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
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Ubuntu Security Notice 5857-1 - Davide Ornaghi discovered that the netfilter subsystem in the Linux kernel did not properly handle VLAN headers in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
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Ubuntu Security Notice 5856-1 - Davide Ornaghi discovered that the netfilter subsystem in the Linux kernel did not properly handle VLAN headers in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Hu Jiahui discovered that multiple race conditions existed in the Advanced Linux Sound Architecture framework, leading to use-after-free vulnerabilities. A local attacker could use these to cause a denial of service or possibly execute arbitrary code.
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Ubuntu Security Notice 5855-1 - It was discovered that ImageMagick incorrectly handled certain PNG images. If a user or automated system were tricked into opening a specially crafted PNG file, an attacker could use this issue to cause ImageMagick to stop responding, resulting in a denial of service, or possibly obtain the contents of arbitrary files by including them into images.
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Ubuntu Security Notice 5853-1 - It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform bounds checking in some situations. A physically proximate attacker could use this to craft a malicious USB device that when inserted, could cause a denial of service or possibly execute arbitrary code. It was discovered that a use-after-free vulnerability existed in the Bluetooth stack in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.
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Ubuntu Security Notice 5854-1 - It was discovered that an out-of-bounds write vulnerability existed in the Video for Linux 2 implementation in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Pawan Kumar Gupta, Alyssa Milburn, Amit Peled, Shani Rehana, Nir Shildan and Ariel Sabba discovered that some Intel processors with Enhanced Indirect Branch Restricted Speculation did not properly handle RET instructions after a VM exits. A local attacker could potentially use this to expose sensitive information.
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Ubuntu Security Notice 5850-1 - It was discovered that the Bluetooth HCI implementation in the Linux kernel did not properly deallocate memory in some situations. An attacker could possibly use this cause a denial of service. It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform bounds checking in some situations. A physically proximate attacker could use this to craft a malicious USB device that when inserted, could cause a denial of service or possibly execute arbitrary code.
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Ubuntu Security Notice 5851-1 - It was discovered that a memory leak existed in the Unix domain socket implementation of the Linux kernel. A local attacker could use this to cause a denial of service. It was discovered that the Bluetooth HCI implementation in the Linux kernel did not properly deallocate memory in some situations. An attacker could possibly use this cause a denial of service.
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Ubuntu Security Notice 5852-1 - It was discovered that OpenStack Swift incorrectly handled certain XML files. A remote authenticated user could possibly use this issue to obtain arbitrary file contents containing sensitive information from the server.
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Ubuntu Security Notice 5835-5 - USN-5835-3 fixed vulnerabilities in Nova. This update provides the corresponding updates for Ubuntu 18.04 LTS. Guillaume Espanel, Pierre Libeau, Arnaud Morin, and Damien Rannou discovered that Nova incorrectly handled VMDK image processing. An authenticated attacker could possibly supply a specially crafted VMDK flat image and obtain arbitrary files from the server containing sensitive information.
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Ubuntu Security Notice 5835-4 - USN-5835-1 fixed vulnerabilities in Cinder. This update provides the corresponding updates for Ubuntu 18.04 LTS. In addition, a regression was fixed for Ubuntu 20.04 LTS. Guillaume Espanel, Pierre Libeau, Arnaud Morin, and Damien Rannou discovered that Cinder incorrectly handled VMDK image processing. An authenticated attacker could possibly supply a specially crafted VMDK flat image and obtain arbitrary files from the server containing sensitive information.
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Ubuntu Security Notice 5849-1 - Helmut Grohne discovered that Heimdal GSSAPI incorrectly handled logical conditions that are related to memory management operations. An attacker could possibly use this issue to cause a denial of service.
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Ubuntu Security Notice 5845-2 - USN-5845-1 fixed several vulnerabilities in OpenSSL. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. David Benjamin discovered that OpenSSL incorrectly handled X.400 address processing. A remote attacker could possibly use this issue to read arbitrary memory contents or cause OpenSSL to crash, resulting in a denial of service.
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Ubuntu Security Notice 5847-1 - It was discovered that Grunt was not properly loading YAML files before parsing them. An attacker could possibly use this issue to execute arbitrary code. It was discovered that Grunt was not properly handling symbolic links when performing file copy operations. An attacker could possibly use this issue to expose sensitive information or execute arbitrary code.
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Ubuntu Security Notice 5845-1 - David Benjamin discovered that OpenSSL incorrectly handled X.400 address processing. A remote attacker could possibly use this issue to read arbitrary memory contents or cause OpenSSL to crash, resulting in a denial of service. Octavio Galland and Marcel Boehme discovered that OpenSSL incorrectly handled streaming ASN.1 data. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code.
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Ubuntu Security Notice 5846-1 - Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled certain memory operations. An attacker could possibly use these issues to cause the X Server to crash, execute arbitrary code, or escalate privileges.
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Ubuntu Security Notice 5844-1 - David Benjamin discovered that OpenSSL incorrectly handled X.400 address processing. A remote attacker could possibly use this issue to read arbitrary memory contents or cause OpenSSL to crash, resulting in a denial of service. Corey Bonnell discovered that OpenSSL incorrectly handled X.509 certificate verification. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 22.10.
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