{"id":"USN-5708-1","summary":"backport-iwlwifi-dkms vulnerabilities","details":"Sönke Huster discovered that an integer overflow vulnerability existed in\nthe WiFi driver stack in the Linux kernel, leading to a buffer overflow. A\nphysically proximate attacker could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2022-41674)\n\nSönke Huster discovered that a use-after-free vulnerability existed in the\nWiFi driver stack in the Linux kernel. A physically proximate attacker\ncould use this to cause a denial of service (system crash) or possibly\nexecute arbitrary code. (CVE-2022-42719)\n\nSönke Huster discovered that the WiFi driver stack in the Linux kernel did\nnot properly perform reference counting in some situations, leading to a\nuse-after-free vulnerability. A physically proximate attacker could use\nthis to cause a denial of service (system crash) or possibly execute\narbitrary code. (CVE-2022-42720)\n\nSönke Huster discovered that the WiFi driver stack in the Linux kernel did\nnot properly handle BSSID/SSID lists in some situations. A physically\nproximate attacker could use this to cause a denial of service (infinite\nloop). (CVE-2022-42721)\n\nSönke Huster discovered that the WiFi driver stack in the Linux kernel\ncontained a NULL pointer dereference vulnerability in certain situations. A\nphysically proximate attacker could use this to cause a denial of service\n(system crash). This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.10.\n(CVE-2022-42722)\n","modified":"2026-02-10T04:42:49Z","published":"2022-11-01T13:15:44Z","related":["UBUNTU-CVE-2022-41674","UBUNTU-CVE-2022-42719","UBUNTU-CVE-2022-42720","UBUNTU-CVE-2022-42721","UBUNTU-CVE-2022-42722"],"upstream":["CVE-2022-41674","CVE-2022-42719","CVE-2022-42720","CVE-2022-42721","CVE-2022-42722","UBUNTU-CVE-2022-41674","UBUNTU-CVE-2022-42719","UBUNTU-CVE-2022-42720","UBUNTU-CVE-2022-42721","UBUNTU-CVE-2022-42722"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5708-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-41674"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-42719"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-42720"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-42721"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-42722"},{"type":"REPORT","url":"https://launchpad.net/bugs/1994525"}],"affected":[{"package":{"name":"backport-iwlwifi-dkms","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/backport-iwlwifi-dkms@8324-0ubuntu3~20.04.5?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8324-0ubuntu3~20.04.5"}]}],"versions":["7906-0ubuntu1","7906-0ubuntu2","8042-0ubuntu1","8042-0ubuntu2","8042-0ubuntu3","8286-0ubuntu1","8324-0ubuntu1","8324-0ubuntu3~20.04.1","8324-0ubuntu3~20.04.2","8324-0ubuntu3~20.04.3","8324-0ubuntu3~20.04.4"],"ecosystem_specific":{"binaries":[{"binary_version":"8324-0ubuntu3~20.04.5","binary_name":"backport-iwlwifi-dkms"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5708-1.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-41674"},{"severity":[{"score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-42719"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-42720"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-42721"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-42722"}],"ecosystem":"Ubuntu:20.04:LTS"}}},{"package":{"name":"backport-iwlwifi-dkms","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/backport-iwlwifi-dkms@9858-0ubuntu3.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9858-0ubuntu3.1"}]}],"versions":["9340-0ubuntu4","9340-0ubuntu5","9858-0ubuntu1","9858-0ubuntu2","9858-0ubuntu3"],"ecosystem_specific":{"binaries":[{"binary_version":"9858-0ubuntu3.1","binary_name":"backport-iwlwifi-dkms"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5708-1.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-41674"},{"severity":[{"score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-42719"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-42720"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-42721"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-42722"}],"ecosystem":"Ubuntu:22.04:LTS"}}}],"schema_version":"1.7.3"}