| Description: | Summary:
The remote host is missing an update for the 'backport-iwlwifi-dkms' package(s) announced via the USN-5708-1 advisory.
Vulnerability Insight:
Sonke 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)
Sonke 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)
Sonke 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)
Sonke 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)
Sonke 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). This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.10.
(CVE-2022-42722)
Affected Software/OS:
'backport-iwlwifi-dkms' package(s) on Ubuntu 20.04, Ubuntu 22.04, Ubuntu 22.10.
Solution:
Please install the updated package(s).
CVSS Score:
8.3
CVSS Vector:
AV:A/AC:L/Au:N/C:C/I:C/A:C
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