Summary
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 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 (guest kernel memory). (CVE-2022-26365)
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 (guest kernel memory). (CVE-2022-33740)
It was discovered that the Xen paravirtualization frontend in the Linux
kernel incorrectly shared unrelated data when communicating with certain
backends. A local attacker could use this to cause a denial of service
(guest crash) or expose sensitive information (guest kernel memory).
(CVE-2022-33741, CVE-2022-33742)
Jan Beulich discovered that the Xen network device frontend driver in the
Linux kernel incorrectly handled socket buffers (skb) references when
communicating with certain backends. A local attacker could use this to
cause a denial of service (guest crash). (CVE-2022-33743)
Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in
the Linux kernel on ARM platforms contained a race condition in certain
situations. An attacker in a guest VM could use this to cause a denial of
service in the host OS. (CVE-2022-33744)
It was discovered that the virtio RPMSG bus driver in the Linux kernel
contained a double-free vulnerability in certain error conditions. A local
attacker could possibly use this to cause a denial of service (system
crash). (CVE-2022-34494, CVE-2022-34495)
Domingo Dirutigliano and Nicola Guerrera discovered that the netfilter
subsystem in the Linux kernel did not properly handle rules that truncated
packets below the packet header size. When such rules are in place, a
remote attacker could possibly use this to cause a denial of service
(system crash). (CVE-2022-36946)
Fixed packages 7
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 20.04 LTS 20.04:LTS | linux-aws-5.15 | 5.15.0-1020.24~20.04.1 |
| Ubuntu · 20.04 LTS 20.04:LTS | linux-azure-5.15 | 5.15.0-1020.25~20.04.1 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux | 5.15.0-48.54 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-aws | 5.15.0-1020.24 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-azure | 5.15.0-1020.25 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-kvm | 5.15.0-1018.22 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-lowlatency | 5.15.0-48.54 |
Vulnerabilities 11
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High 7.5CVE-2022-36946 Public exploit
nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote attackers to cause a …
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Unscored —
When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.
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Unscored —
There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers…
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Unscored —
Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspe…
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Unscored —
Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspe…
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Unscored —
Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspe…
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Unscored —
Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspe…
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Unscored —
network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a cod…
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Unscored —
Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track…
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Unscored —
rpmsg_virtio_add_ctrl_dev in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free.
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Unscored —
rpmsg_probe in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free.
References
-
report
https://ubuntu.com/security/CVE-2021-33655
-
report
https://ubuntu.com/security/CVE-2022-2318
-
report
https://ubuntu.com/security/CVE-2022-26365
-
report
https://ubuntu.com/security/CVE-2022-33740
-
report
https://ubuntu.com/security/CVE-2022-33741
-
report
https://ubuntu.com/security/CVE-2022-33742
-
report
https://ubuntu.com/security/CVE-2022-33743
-
report
https://ubuntu.com/security/CVE-2022-33744
-
report
https://ubuntu.com/security/CVE-2022-34494
-
report
https://ubuntu.com/security/CVE-2022-34495
-
report
https://ubuntu.com/security/CVE-2022-36946