{"id":48871,"date":"2022-11-19T06:05:17","date_gmt":"2022-11-18T21:05:17","guid":{"rendered":"https:\/\/jirak.net\/wp\/usn-5728-2-linux-kernel-vulnerabilities\/"},"modified":"2022-11-19T07:34:07","modified_gmt":"2022-11-18T22:34:07","slug":"usn-5728-2-linux-kernel-vulnerabilities","status":"publish","type":"post","link":"https:\/\/jirak.net\/wp\/usn-5728-2-linux-kernel-vulnerabilities\/","title":{"rendered":"USN-5728-2: Linux kernel vulnerabilities"},"content":{"rendered":"<p>USN-5728-2: Linux kernel vulnerabilities<\/p>\n<p>Jann Horn discovered that the Linux kernel did not properly track memory<br \/>\nallocations for anonymous VMA mappings in some situations, leading to<br \/>\npotential data structure reuse. A local attacker could use this to cause a<br \/>\ndenial of service (system crash) or possibly execute arbitrary code.<br \/>\n(CVE-2022-42703)<\/p>\n<p>It was discovered that a race condition existed in the memory address space<br \/>\naccounting implementation in the Linux kernel, leading to a use-after-free<br \/>\nvulnerability. A local attacker could use this to cause a denial of service<br \/>\n(system crash) or possibly execute arbitrary code. (CVE-2022-41222)<\/p>\n<p>It was discovered that a race condition existed in the instruction emulator<br \/>\nof the Linux kernel on Arm 64-bit systems. A local attacker could use this<br \/>\nto cause a denial of service (system crash). (CVE-2022-20422)<\/p>\n<p>It was discovered that the KVM implementation in the Linux kernel did not<br \/>\nproperly handle virtual CPUs without APICs in certain situations. A local<br \/>\nattacker could possibly use this to cause a denial of service (host system<br \/>\ncrash). (CVE-2022-2153)<\/p>\n<p>Hao Sun and Jiacheng Xu discovered that the NILFS file system<br \/>\nimplementation in the Linux kernel contained a use-after-free<br \/>\nvulnerability. A local attacker could use this to cause a denial of service<br \/>\n(system crash) or possibly execute arbitrary code. (CVE-2022-2978)<\/p>\n<p>Johannes Wikner and Kaveh Razavi discovered that for some Intel x86-64<br \/>\nprocessors, the Linux kernel&#8217;s protections against speculative branch<br \/>\ntarget injection attacks were insufficient in some circumstances. A local<br \/>\nattacker could possibly use this to expose sensitive information.<br \/>\n(CVE-2022-29901)<\/p>\n<p>Abhishek Shah discovered a race condition in the PF_KEYv2 implementation in<br \/>\nthe Linux kernel. A local attacker could use this to cause a denial of<br \/>\nservice (system crash) or possibly expose sensitive information (kernel<br \/>\nmemory). (CVE-2022-3028)<\/p>\n<p>It was discovered that the Netlink device interface implementation in the<br \/>\nLinux kernel did not properly handle certain error conditions, leading to a<br \/>\nuse-after-free vulnerability with some network device drivers. A local<br \/>\nattacker with admin access to the network device could use this to cause a<br \/>\ndenial of service (system crash) or possibly execute arbitrary code.<br \/>\n(CVE-2022-3625)<\/p>\n<p>It was discovered that the IDT 77252 ATM PCI device driver in the Linux<br \/>\nkernel did not properly remove any pending timers during device exit,<br \/>\nresulting in a use-after-free vulnerability. A local attacker could<br \/>\npossibly use this to cause a denial of service (system crash) or execute<br \/>\narbitrary code. (CVE-2022-3635)<\/p>\n<p>Jann Horn discovered a race condition existed in the Linux kernel when<br \/>\nunmapping VMAs in certain situations, resulting in possible use-after-free<br \/>\nvulnerabilities. A local attacker could possibly use this to cause a denial<br \/>\nof service (system crash) or execute arbitrary code. (CVE-2022-39188)<\/p>\n<p>Xingyuan Mo and Gengjia Chen discovered that the Promise SuperTrak EX<br \/>\nstorage controller driver in the Linux kernel did not properly handle<br \/>\ncertain structures. A local attacker could potentially use this to expose<br \/>\nsensitive information (kernel memory). (CVE-2022-40768)<\/p>\n<p>S\u00f6nke Huster discovered that a use-after-free vulnerability existed in the<br \/>\nWiFi driver stack in the Linux kernel. A physically proximate attacker<br \/>\ncould use this to cause a denial of service (system crash) or possibly<br \/>\nexecute arbitrary code. (CVE-2022-42719)<br \/>\nSource: <a href=\"https:\/\/ubuntu.com\/security\/notices\/USN-5728-2\" target=\"_blank\" rel=\"noopener\">USN-5728-2: Linux kernel vulnerabilities<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>USN-5728-2: Linux kernel vulnerabilities Jann Horn discovered that the Linux kernel did not properly track memory allocations for anonymous VMA mappings in some situations, leading to potential data structure reuse. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-42703) It was discovered that a race condition existed in the memory address space accounting implementation in the Linux kernel, leading to 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-2022-41222) It was discovered that a race condition existed in the instruction emulator of the Linux kernel on Arm 64-bit systems. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-20422) It was discovered that the KVM implementation in the Linux kernel <a class=\"mh-excerpt-more\" href=\"https:\/\/jirak.net\/wp\/usn-5728-2-linux-kernel-vulnerabilities\/\" title=\"USN-5728-2: Linux kernel vulnerabilities\">[ more&#8230; ]<\/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-48871","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\/48871","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=48871"}],"version-history":[{"count":1,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/48871\/revisions"}],"predecessor-version":[{"id":48872,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/48871\/revisions\/48872"}],"wp:attachment":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/media?parent=48871"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/categories?post=48871"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/tags?post=48871"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}