Summary
David Bouman and Billy Jheng Bing Jhong discovered that a race condition
existed in the io_uring subsystem in the Linux kernel, 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-2022-2602)
Sönke Huster discovered that an integer overflow vulnerability existed in
the WiFi driver stack in the Linux kernel, leading to a buffer overflow. A
physically proximate attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2022-41674)
Sönke Huster discovered that a use-after-free vulnerability existed in the
WiFi driver stack in the Linux kernel. A physically proximate attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2022-42719)
Sönke Huster discovered that the WiFi driver stack in the Linux kernel did
not properly perform reference counting in some situations, leading to a
use-after-free vulnerability. A physically proximate attacker could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2022-42720)
Sönke Huster discovered that the WiFi driver stack in the Linux kernel did
not properly handle BSSID/SSID lists in some situations. A physically
proximate attacker could use this to cause a denial of service (infinite
loop). (CVE-2022-42721)
Sönke Huster discovered that the WiFi driver stack in the Linux kernel
contained a NULL pointer dereference vulnerability in certain situations. A
physically proximate attacker could use this to cause a denial of service
(system crash). (CVE-2022-42722)
Fixed packages 18
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 20.04 LTS 20.04:LTS | linux-aws-5.15 | 5.15.0-1022.26~20.04.1 |
| Ubuntu · 20.04 LTS 20.04:LTS | linux-azure-5.15 | 5.15.0-1022.27~20.04.1 |
| Ubuntu · 20.04 LTS 20.04:LTS | linux-gcp-5.15 | 5.15.0-1021.28~20.04.1 |
| Ubuntu · 20.04 LTS 20.04:LTS | linux-gke-5.15 | 5.15.0-1019.23~20.04.1 |
| Ubuntu · 20.04 LTS 20.04:LTS | linux-hwe-5.15 | 5.15.0-52.58~20.04.1 |
| Ubuntu · 20.04 LTS 20.04:LTS | linux-lowlatency-hwe-5.15 | 5.15.0-52.58~20.04.1 |
| Ubuntu · 20.04 LTS 20.04:LTS | linux-oem-5.14 | 5.14.0-1054.61 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux | 5.15.0-52.58 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-aws | 5.15.0-1022.26 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-azure | 5.15.0-1022.27 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-gcp | 5.15.0-1021.28 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-gke | 5.15.0-1019.23 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-gkeop | 5.15.0-1007.10 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-ibm | 5.15.0-1017.20 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-kvm | 5.15.0-1020.24 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-lowlatency | 5.15.0-52.58 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-oracle | 5.15.0-1021.27 |
| Ubuntu · 22.04 LTS 22.04:LTS | linux-raspi | 5.15.0-1017.19 |
Vulnerabilities 6
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High 8.8
A use-after-free in the mac80211 stack when parsing a multi-BSSID element in the Linux kernel 5.2 through 5.19.x before…
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High 8.1
An issue was discovered in the Linux kernel before 5.19.16. Attackers able to inject WLAN frames could cause a buffer o…
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High 7.8
Various refcounting bugs in the multi-BSS handling in the mac80211 stack in the Linux kernel 5.1 through 5.19.x before …
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Medium 5.5
A list management bug in BSS handling in the mac80211 stack in the Linux kernel 5.1 through 5.19.x before 5.19.16 could…
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Medium 5.3CVE-2022-2602 Public exploit
io_uring UAF, Unix SCM garbage collection
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Unscored —
In the Linux kernel 5.8 through 5.19.x before 5.19.16, local attackers able to inject WLAN frames into the mac80211 sta…