Summary
Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in
the netfilter subsystem of the Linux kernel when processing batch requests,
leading to 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-2023-32233)
Gwangun Jung discovered that the Quick Fair Queueing scheduler
implementation in the Linux kernel contained an out-of-bounds write
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2023-31436)
Reima Ishii discovered that the nested KVM implementation for Intel x86
processors in the Linux kernel did not properly validate control registers
in certain situations. An attacker in a guest VM could use this to cause a
denial of service (guest crash). (CVE-2023-30456)
It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux
kernel did not properly perform data buffer size validation in some
situations. A physically proximate attacker could use this to craft a
malicious USB device that when inserted, could cause a denial of service
(system crash) or possibly expose sensitive information. (CVE-2023-1380)
Fixed packages 13
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 18.04 LTS 18.04:LTS | linux | 4.15.0-212.223 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-aws | 4.15.0-1157.170 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-azure-4.15 | 4.15.0-1166.181 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-gcp-4.15 | 4.15.0-1151.167 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-kvm | 4.15.0-1141.146 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-oracle | 4.15.0-1120.131 |
| Ubuntu · 18.04 LTS 18.04:LTS | linux-snapdragon | 4.15.0-1151.161 |
| Ubuntu · Pro 14.04 LTS Pro:14.04:LTS | linux-azure | 4.15.0-1166.181~14.04.1 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | linux-aws-hwe | 4.15.0-1157.170~16.04.1 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | linux-azure | 4.15.0-1166.181~16.04.1 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | linux-gcp | 4.15.0-1151.167~16.04.1 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | linux-hwe | 4.15.0-212.223~16.04.1 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | linux-oracle | 4.15.0-1120.131~16.04.1 |
Vulnerabilities 4
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High 7.8
qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax ca…
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High 7.8
In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused…
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High 7.1CVE-2023-1380 EPSS 16%
A slab-out-of-bound read problem was found in brcmf_get_assoc_ies in drivers/net/wireless/broadcom/brcm80211/brcmfmac/c…
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Medium 6.5
An issue was discovered in arch/x86/kvm/vmx/nested.c in the Linux kernel before 6.2.8. nVMX on x86_64 lacks consistency…