USN-5648-1: Linux kernel (GKE) vulnerabilities<\/p>\n
It was discovered that the framebuffer driver on the Linux kernel did not
\nverify size limits when changing font or screen size, leading to an out-of-
\nbounds write. A local attacker could use this to cause a denial of service
\n(system crash) or possibly execute arbitrary code. (CVE-2021-33655)<\/p>\n
Duoming Zhou discovered that race conditions existed in the timer handling
\nimplementation of the Linux kernel’s Rose X.25 protocol layer, resulting in
\nuse-after-free vulnerabilities. A local attacker could use this to cause a
\ndenial of service (system crash). (CVE-2022-2318)<\/p>\n
Roger Pau Monn\u00e9 discovered that the Xen virtual block driver in the Linux
\nkernel did not properly initialize memory pages to be used for shared
\ncommunication with the backend. A local attacker could use this to expose
\nsensitive information (guest kernel memory). (CVE-2022-26365)<\/p>\n
Roger Pau Monn\u00e9 discovered that the Xen paravirtualization frontend in the
\nLinux kernel did not properly initialize memory pages to be used for shared
\ncommunication with the backend. A local attacker could use this to expose
\nsensitive information (guest kernel memory). (CVE-2022-33740)<\/p>\n
It was discovered that the Xen paravirtualization frontend in the Linux
\nkernel incorrectly shared unrelated data when communicating with certain
\nbackends. A local attacker could use this to cause a denial of service
\n(guest crash) or expose sensitive information (guest kernel memory).
\n(CVE-2022-33741, CVE-2022-33742)<\/p>\n
Jan Beulich discovered that the Xen network device frontend driver in the
\nLinux kernel incorrectly handled socket buffers (skb) references when
\ncommunicating with certain backends. A local attacker could use this to
\ncause a denial of service (guest crash). (CVE-2022-33743)<\/p>\n
Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in
\nthe Linux kernel on ARM platforms contained a race condition in certain
\nsituations. An attacker in a guest VM could use this to cause a denial of
\nservice in the host OS. (CVE-2022-33744)<\/p>\n
It was discovered that the virtio RPMSG bus driver in the Linux kernel
\ncontained a double-free vulnerability in certain error conditions. A local
\nattacker could possibly use this to cause a denial of service (system
\ncrash). (CVE-2022-34494, CVE-2022-34495)<\/p>\n
Domingo Dirutigliano and Nicola Guerrera discovered that the netfilter USN-5648-1: Linux kernel (GKE) vulnerabilities It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of- bounds write. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33655) Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel’s Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318) Roger Pau Monn\u00e9 discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365) Roger Pau Monn\u00e9 discovered that [ 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-48143","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\/48143","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=48143"}],"version-history":[{"count":1,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/48143\/revisions"}],"predecessor-version":[{"id":48144,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/48143\/revisions\/48144"}],"wp:attachment":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/media?parent=48143"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/categories?post=48143"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/tags?post=48143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nsubsystem in the Linux kernel did not properly handle rules that truncated
\npackets below the packet header size. When such rules are in place, a
\nremote attacker could possibly use this to cause a denial of service
\n(system crash). (CVE-2022-36946)
\nSource: USN-5648-1: Linux kernel (GKE) vulnerabilities<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"