Test ID:	1.3.6.1.4.1.25623.1.0.845107
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-5116-1)
Summary:	The remote host is missing an update for the 'linux, linux-bluefield, linux-gcp-5.4, linux-hwe-5.4, linux-kvm' package(s) announced via the USN-5116-1 advisory.
Description:	Summary: The remote host is missing an update for the 'linux, linux-bluefield, linux-gcp-5.4, linux-hwe-5.4, linux-kvm' package(s) announced via the USN-5116-1 advisory. Vulnerability Insight: It was discovered that a race condition existed in the Atheros Ath9k WiFi driver in the Linux kernel. An attacker could possibly use this to expose sensitive information (WiFi network traffic). (CVE-2020-3702) Alois Wohlschlager discovered that the overlay file system in the Linux kernel did not restrict private clones in some situations. An attacker could use this to expose sensitive information. (CVE-2021-3732) It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly compute the access permissions for shadow pages in some situations. A local attacker could use this to cause a denial of service. (CVE-2021-38198) It was discovered that the Xilinx 10/100 Ethernet Lite device driver in the Linux kernel could report pointer addresses in some situations. An attacker could use this information to ease the exploitation of another vulnerability. (CVE-2021-38205) It was discovered that the ext4 file system in the Linux kernel contained a race condition when writing xattrs to an inode. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. (CVE-2021-40490) It was discovered that the 6pack network protocol driver in the Linux kernel did not properly perform validation checks. A privileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-42008) Affected Software/OS: 'linux, linux-bluefield, linux-gcp-5.4, linux-hwe-5.4, linux-kvm' package(s) on Ubuntu 18.04, Ubuntu 20.04. Solution: Please install the updated package(s). CVSS Score: 6.9 CVSS Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2020-3702 https://www.qualcomm.com/company/product-security/bulletins/august-2020-bulletin Debian Security Information: DSA-4978 (Google Search) https://www.debian.org/security/2021/dsa-4978 https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html Common Vulnerability Exposure (CVE) ID: CVE-2021-3732 https://bugzilla.redhat.com/show_bug.cgi?id=1995249 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=427215d85e8d1476da1a86b8d67aceb485eb3631 https://github.com/torvalds/linux/commit/427215d85e8d1476da1a86b8d67aceb485eb3631 https://ubuntu.com/security/CVE-2021-3732 Common Vulnerability Exposure (CVE) ID: CVE-2021-38198 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11 https://github.com/torvalds/linux/commit/b1bd5cba3306691c771d558e94baa73e8b0b96b7 Common Vulnerability Exposure (CVE) ID: CVE-2021-38205 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3 https://github.com/torvalds/linux/commit/d0d62baa7f505bd4c59cd169692ff07ec49dde37 Common Vulnerability Exposure (CVE) ID: CVE-2021-40490 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XJGX3DMJT6MRBW2XEF3TWVHYWZW3DG3N/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M6VS2DLGT7TK7URKAS2KWJL3S533SGVA/ https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=9e445093e523f3277081314c864f708fd4bd34aa Common Vulnerability Exposure (CVE) ID: CVE-2021-42008 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.13 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=19d1532a187669ce86d5a2696eb7275310070793 https://www.youtube.com/watch?v=d5f9xLK8Vhw
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