Summary
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 did not
properly handle virtual CPUs without APICs in certain situations. A local
attacker could possibly use this to cause a denial of service (host system
crash). (CVE-2022-2153)
Hao Sun and Jiacheng Xu discovered that the NILFS file system
implementation in the Linux kernel contained 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-2022-2978)
Abhishek Shah discovered a race condition in the PF_KEYv2 implementation in
the Linux kernel. A local attacker could use this to cause a denial of
service (system crash) or possibly expose sensitive information (kernel
memory). (CVE-2022-3028)
It was discovered that the IDT 77252 ATM PCI device driver in the Linux
kernel did not properly remove any pending timers during device exit,
resulting in a use-after-free vulnerability. A local attacker could
possibly use this to cause a denial of service (system crash) or execute
arbitrary code. (CVE-2022-3635)
It was discovered that the Netlink Transformation (XFRM) subsystem in the
Linux kernel contained a reference counting error. A local attacker could
use this to cause a denial of service (system crash). (CVE-2022-36879)
Xingyuan Mo and Gengjia Chen discovered that the Promise SuperTrak EX
storage controller driver in the Linux kernel did not properly handle
certain structures. A local attacker could potentially use this to expose
sensitive information (kernel memory). (CVE-2022-40768)
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 18.04 LTS 18.04:LTS | linux-gcp-4.15 | 4.15.0-1138.154 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | linux-gcp | 4.15.0-1138.154~16.04.1 |
Vulnerabilities 7
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Medium 5.5
Linux Kernel IPsec idt77252.c tst_timer use after free
A vulnerability, which was classified as critical, has been found in Linux Kernel. Affected by this issue is the function tst_timer of the file drivers/atm/idt77252.c of the component IPsec. The manipulation leads to use after free. It is recommended to apply…
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Medium 5.5
An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a…
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Unscored —
In emulation_proc_handler of armv8_deprecated.c, there is a possible way to corrupt memory due to a race condition. Thi…
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Unscored —
A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbe…
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Unscored —
A flaw use after free in the Linux kernel NILFS file system was found in the way user triggers function security_inode_…
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Unscored —
A race condition was found in the Linux kernel's IP framework for transforming packets (XFRM subsystem) when multiple c…
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Unscored —
drivers/scsi/stex.c in the Linux kernel through 5.19.9 allows local users to obtain sensitive information from kernel m…
References
-
report
https://ubuntu.com/security/CVE-2022-2153
-
report
https://ubuntu.com/security/CVE-2022-2978
-
report
https://ubuntu.com/security/CVE-2022-3028
-
report
https://ubuntu.com/security/CVE-2022-3635
-
report
https://ubuntu.com/security/CVE-2022-20422
-
report
https://ubuntu.com/security/CVE-2022-36879
-
report
https://ubuntu.com/security/CVE-2022-40768