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CVE-2022-33741

Status Candidate

Overview

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).

Related Files

Ubuntu Security Notice USN-5655-1
Posted Oct 5, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5655-1 - 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 or possibly execute arbitrary code. 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.

tags | advisory, denial of service, arbitrary, kernel, local, vulnerability, protocol
systems | linux, ubuntu
advisories | CVE-2021-33655, CVE-2022-2318, CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33743, CVE-2022-33744, CVE-2022-34494, CVE-2022-36946
SHA-256 | 3aaf61e627554b283ddaefe994cfe40ef2e17fd36cf71b9be833439e1bc03998
Ubuntu Security Notice USN-5648-1
Posted Oct 1, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5648-1 - 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 or possibly execute arbitrary code. 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.

tags | advisory, denial of service, arbitrary, kernel, local, vulnerability, protocol
systems | linux, ubuntu
advisories | CVE-2021-33655, CVE-2022-2318, CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33743, CVE-2022-33744, CVE-2022-34494, CVE-2022-36946
SHA-256 | 694947a97de47224c18315b0b897bc61af2cb457626d7aece0e9acce30f80ef1
Ubuntu Security Notice USN-5644-1
Posted Sep 28, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5644-1 - 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 or possibly execute arbitrary code. 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.

tags | advisory, denial of service, arbitrary, kernel, local, vulnerability, protocol
systems | linux, ubuntu
advisories | CVE-2021-33655, CVE-2022-2318, CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33743, CVE-2022-33744, CVE-2022-34494, CVE-2022-36946
SHA-256 | 52e89f704b52d276628aa495437f86aa41bdebe72618eb49ef32fb4cfa0b8b3a
Ubuntu Security Notice USN-5640-1
Posted Sep 27, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5640-1 - 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 or possibly execute arbitrary code. 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.

tags | advisory, denial of service, arbitrary, kernel, local, vulnerability, protocol
systems | linux, ubuntu
advisories | CVE-2021-33655, CVE-2022-2318, CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33743, CVE-2022-33744, CVE-2022-34494, CVE-2022-36946
SHA-256 | 3625e3b2da9a0410378ac816823ba61932971c1be9dd47ea657d3040d94702f5
Ubuntu Security Notice USN-5635-1
Posted Sep 26, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5635-1 - 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 or possibly execute arbitrary code. 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.

tags | advisory, denial of service, arbitrary, kernel, local, vulnerability, protocol
systems | linux, ubuntu
advisories | CVE-2021-33655, CVE-2022-2318, CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33743, CVE-2022-33744, CVE-2022-34494, CVE-2022-36946
SHA-256 | 659df738a1290534fb4de396b00a3b37c0db9cd653e811b0b0daf576c904b263
Ubuntu Security Notice USN-5633-1
Posted Sep 23, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5633-1 - 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 or possibly execute arbitrary code. 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.

tags | advisory, denial of service, arbitrary, kernel, local, vulnerability, protocol
systems | linux, ubuntu
advisories | CVE-2021-33655, CVE-2022-2318, CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33743, CVE-2022-33744, CVE-2022-34494, CVE-2022-36946
SHA-256 | 8351862c78cded631737902c0b3547d5bb307ab0a6be5cec52f04529fb8c7581
Ubuntu Security Notice USN-5624-1
Posted Sep 21, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5624-1 - 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 or possibly execute arbitrary code. 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.

tags | advisory, denial of service, arbitrary, kernel, local, vulnerability, protocol
systems | linux, ubuntu
advisories | CVE-2021-33655, CVE-2022-2318, CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33743, CVE-2022-33744, CVE-2022-34494, CVE-2022-36946
SHA-256 | c0aa41281b93bc03ff14dd2e3b4c36a94d879b74a8922ddb466c077ece80362e
Ubuntu Security Notice USN-5572-2
Posted Aug 30, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5572-2 - Roger Pau Monné 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. Roger Pau Monné discovered that the Xen paravirtualization frontend 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.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-26365, CVE-2022-33740, CVE-2022-33741
SHA-256 | 819d4e70c8a85bb39a298c0e1b33e7cb57b7b32f8fc42a08ecacc83c7413ff95
Ubuntu Security Notice USN-5579-1
Posted Aug 25, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5579-1 - Roger Pau Monné 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. Roger Pau Monné discovered that the Xen paravirtualization frontend 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.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-26365, CVE-2022-33740, CVE-2022-33741
SHA-256 | ac4106fc5b1a7b01299b43e14f8ddfd41caadfd89009f5d20b5348e7e1ccf400
Ubuntu Security Notice USN-5572-1
Posted Aug 19, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5572-1 - Roger Pau Monné 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. Roger Pau Monné discovered that the Xen paravirtualization frontend 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.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-26365, CVE-2022-33740, CVE-2022-33741
SHA-256 | 872a20bd18de5b36c76ff27661a51d424a4716b6709a166fd463d3e661c283f2
Debian Security Advisory 5191-1
Posted Jul 28, 2022
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5191-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2021-33655, CVE-2022-2318, CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742, CVE-2022-33743, CVE-2022-33744, CVE-2022-34918
SHA-256 | 914eefcc94d369cd1ff3058c3f8c135f235e5f4f9241b7711804c19b9c63953d
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