Summary
It was discovered that the Linux kernel did not properly restrict access to
the kernel debugger when booted in secure boot environments. A privileged
attacker could use this to bypass UEFI Secure Boot restrictions.
(CVE-2022-21499)
Aaron Adams discovered that the netfilter subsystem in the Linux kernel did
not properly handle the removal of stateful expressions in some situations,
leading to a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or execute arbitrary code.
(CVE-2022-1966)
It was discovered that the SCTP protocol implementation in the Linux kernel
did not properly verify VTAGs in some situations. A remote attacker could
possibly use this to cause a denial of service (connection disassociation).
(CVE-2021-3772)
It was discovered that the btrfs file system implementation in the Linux
kernel did not properly handle locking in certain error conditions. A local
attacker could use this to cause a denial of service (kernel deadlock).
(CVE-2021-4149)
David Bouman discovered that the netfilter subsystem in the Linux kernel
did not initialize memory in some situations. A local attacker could use
this to expose sensitive information (kernel memory). (CVE-2022-1016)
It was discovered that the virtual graphics memory manager implementation
in the Linux kernel was subject to a race condition, potentially leading to
an information leak. (CVE-2022-1419)
赵子轩 discovered that the 802.2 LLC type 2 driver in the Linux kernel did not
properly perform reference counting in some error conditions. A local
attacker could use this to cause a denial of service. (CVE-2022-28356)
It was discovered that the EMS CAN/USB interface implementation in the
Linux kernel contained a double-free vulnerability when handling certain
error conditions. A local attacker could use this to cause a denial of
service (memory exhaustion). (CVE-2022-28390)
Fixed packages 14
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 18.04 LTS 18.04:LTS | linux | 4.15.0-184.194 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-aws | 4.15.0-1133.143 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-azure-4.15 | 4.15.0-1142.156 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-gcp-4.15 | 4.15.0-1127.142 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-kvm | 4.15.0-1119.123 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-oracle | 4.15.0-1098.108 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-raspi2 | 4.15.0-1114.122 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-snapdragon | 4.15.0-1132.142 |
| Ubuntu · Pro 14.04 LTS Pro:14.04:LTS | linux-azure | 4.15.0-1142.156~14.04.1 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | linux-aws-hwe | 4.15.0-1133.143~16.04.1 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | linux-azure | 4.15.0-1142.156~16.04.1 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | linux-gcp | 4.15.0-1127.142~16.04.1 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | linux-hwe | 4.15.0-184.194~16.04.1 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | linux-oracle | 4.15.0-1098.108~16.04.1 |
Vulnerabilities 8
-
Medium 6.7
KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown. An attacker w…
-
Medium 5.5
In the Linux kernel before 5.17.1, a refcount leak bug was found in net/llc/af_llc.c.
-
Unscored —
A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through inv…
-
Unscored —
A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock o…
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Unscored —
A flaw was found in the Linux kernel in net/netfilter/nf_tables_core.c:nft_do_chain, which can cause a use-after-free. …
-
Unscored —
The root cause of this vulnerability is that the ioctl$DRM_IOCTL_MODE_DESTROY_DUMB can decrease refcount of *drm_vgem_g…
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Unscored —
DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2022-32250. Reason: This candidate is a duplicate of CVE-2022-32250. …
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Unscored —
ems_usb_start_xmit in drivers/net/can/usb/ems_usb.c in the Linux kernel through 5.17.1 has a double free.
References
-
report
https://ubuntu.com/security/CVE-2021-3772
-
report
https://ubuntu.com/security/CVE-2021-4149
-
report
https://ubuntu.com/security/CVE-2022-1016
-
report
https://ubuntu.com/security/CVE-2022-1419
-
report
https://ubuntu.com/security/CVE-2022-1966
-
report
https://ubuntu.com/security/CVE-2022-21499
-
report
https://ubuntu.com/security/CVE-2022-28356
-
report
https://ubuntu.com/security/CVE-2022-28390