USN-5299-1: Linux kernel vulnerabilities<\/p>\n
Mathy Vanhoef discovered that the Linux kernel\u2019s WiFi implementation could
\nreassemble mixed encrypted and plaintext fragments. A physically proximate
\nattacker could possibly use this issue to inject packets or exfiltrate
\nselected fragments. (CVE-2020-26147)<\/p>\n
It was discovered that the bluetooth subsystem in the Linux kernel did not
\nproperly perform access control. An authenticated attacker could possibly
\nuse this to expose sensitive information. (CVE-2020-26558, CVE-2021-0129)<\/p>\n
It was discovered that the RPA PCI Hotplug driver implementation in the
\nLinux kernel did not properly handle device name writes via sysfs, leading
\nto a buffer overflow. A privileged attacker could use this to cause a
\ndenial of service (system crash) or possibly execute arbitrary code.
\n(CVE-2021-28972)<\/p>\n
It was discovered that a use-after-free existed in the Bluetooth HCI driver
\nof the Linux kernel. A local attacker could use this to cause a denial of
\nservice (system crash) or possibly execute arbitrary code. (CVE-2021-33034)<\/p>\n
Norbert Slusarek discovered that the CAN broadcast manger (bcm) protocol
\nimplementation in the Linux kernel did not properly initialize memory in
\nsome situations. A local attacker could use this to expose sensitive
\ninformation (kernel memory). (CVE-2021-34693)<\/p>\n
\u9a6c\u54f2\u5b87 discovered that the IEEE 1394 (Firewire) nosy packet sniffer driver in
\nthe Linux kernel did not properly perform reference counting in some
\nsituations, leading to a use-after-free vulnerability. A local attacker
\ncould use this to cause a denial of service (system crash) or possibly
\nexecute arbitrary code. (CVE-2021-3483)<\/p>\n
It was discovered that the bluetooth subsystem in the Linux kernel did not
\nproperly handle HCI device initialization failure, leading to a double-free
\nvulnerability. An attacker could use this to cause a denial of service or
\npossibly execute arbitrary code. (CVE-2021-3564)<\/p>\n
Murray McAllister discovered that the joystick device interface in the
\nLinux kernel did not properly validate data passed via an ioctl(). A local
\nattacker could use this to cause a denial of service (system crash) or
\npossibly execute arbitrary code on systems with a joystick device
\nregistered. (CVE-2021-3612)<\/p>\n
It was discovered that the tracing subsystem in the Linux kernel did not
\nproperly keep track of per-cpu ring buffer state. A privileged attacker
\ncould use this to cause a denial of service. (CVE-2021-3679)<\/p>\n
It was discovered that the MAX-3421 host USB device driver in the Linux
\nkernel did not properly handle device removal events. A physically
\nproximate attacker could use this to cause a denial of service (system
\ncrash). (CVE-2021-38204)<\/p>\n
It was discovered that the 6pack network protocol driver in the Linux
\nkernel did not properly perform validation checks. A privileged attacker
\ncould use this to cause a denial of service (system crash) or execute
\narbitrary code. (CVE-2021-42008)<\/p>\n
Amit Klein discovered that the IPv6 implementation in the Linux kernel USN-5299-1: Linux kernel vulnerabilities Mathy Vanhoef discovered that the Linux kernel\u2019s WiFi implementation could reassemble mixed encrypted and plaintext fragments. A physically proximate attacker could possibly use this issue to inject packets or exfiltrate selected fragments. (CVE-2020-26147) It was discovered that the bluetooth subsystem in the Linux kernel did not properly perform access control. An authenticated attacker could possibly use this to expose sensitive information. (CVE-2020-26558, CVE-2021-0129) It was discovered that the RPA PCI Hotplug driver implementation in the Linux kernel did not properly handle device name writes via sysfs, leading to a buffer overflow. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-28972) It was discovered that a use-after-free existed in the Bluetooth HCI driver of the Linux kernel. A local attacker could use this to cause a [ more… ]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[586],"tags":[587],"class_list":["post-45279","post","type-post","status-publish","format-standard","hentry","category-ubuntu-usn","tag-ubuntu-usn"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/45279","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/comments?post=45279"}],"version-history":[{"count":1,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/45279\/revisions"}],"predecessor-version":[{"id":45280,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/45279\/revisions\/45280"}],"wp:attachment":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/media?parent=45279"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/categories?post=45279"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/tags?post=45279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\ncould disclose internal state in some situations. An attacker could
\npossibly use this to expose sensitive information. (CVE-2021-45485)
\nSource: USN-5299-1: Linux kernel vulnerabilities<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"