Test ID:	1.3.6.1.4.1.25623.1.1.12.2023.6417.1
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-6417-1)
Summary:	The remote host is missing an update for the 'linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gkeop, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-iot, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4, linux-xilinx-zynqmp' package(s) announced via the USN-6417-1 advisory.
Description:	Summary: The remote host is missing an update for the 'linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gkeop, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-iot, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4, linux-xilinx-zynqmp' package(s) announced via the USN-6417-1 advisory. Vulnerability Insight: It was discovered that the eBPF implementation in the Linux kernel contained a race condition around read-only maps. A privileged attacker could use this to modify read-only maps. (CVE-2021-4001) It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service (excessive CPU consumption). (CVE-2023-1206) Yang Lan discovered that the GFS2 file system implementation in the Linux kernel could attempt to dereference a null pointer in some situations. An attacker could use this to construct a malicious GFS2 image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2023-3212) Davide Ornaghi discovered that the DECnet network protocol implementation in the Linux kernel contained a null pointer dereference vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Please note that kernel support for the DECnet has been removed to resolve this CVE. (CVE-2023-3338) It was discovered that the NFC implementation in the Linux kernel contained a use-after-free vulnerability when performing peer-to-peer communication in certain conditions. A privileged attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2023-3863) It was discovered that the TUN/TAP driver in the Linux kernel did not properly initialize socket data. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-4194) Affected Software/OS: 'linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gkeop, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-iot, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4, linux-xilinx-zynqmp' package(s) on Ubuntu 18.04, Ubuntu 20.04. Solution: Please install the updated package(s). CVSS Score: 4.7 CVSS Vector: AV:L/AC:M/Au:N/C:N/I:C/A:N
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2021-4001 https://bugzilla.redhat.com/show_bug.cgi?id=2025645 https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=353050be4c19e102178ccc05988101887c25ae53 Common Vulnerability Exposure (CVE) ID: CVE-2023-1206 Debian Security Information: DSA-5480 (Google Search) https://www.debian.org/security/2023/dsa-5480 Debian Security Information: DSA-5492 (Google Search) https://www.debian.org/security/2023/dsa-5492 https://bugzilla.redhat.com/show_bug.cgi?id=2175903 https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html Common Vulnerability Exposure (CVE) ID: CVE-2023-3212 Debian Security Information: DSA-5448 (Google Search) https://www.debian.org/security/2023/dsa-5448 https://bugzilla.redhat.com/show_bug.cgi?id=2214348 https://github.com/torvalds/linux/commit/504a10d9e46bc37b23d0a1ae2f28973c8516e636 Common Vulnerability Exposure (CVE) ID: CVE-2023-3338 RHBZ#2218618 https://bugzilla.redhat.com/show_bug.cgi?id=2218618 https://access.redhat.com/security/cve/CVE-2023-3338 https://seclists.org/oss-sec/2023/q2/276 https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html Common Vulnerability Exposure (CVE) ID: CVE-2023-3863 RHBZ#2225126 https://bugzilla.redhat.com/show_bug.cgi?id=2225126 https://access.redhat.com/security/cve/CVE-2023-3863 https://github.com/torvalds/linux/commit/6709d4b7bc2e079241fdef15d1160581c5261c10 Common Vulnerability Exposure (CVE) ID: CVE-2023-4194 RHBZ#2229498 https://bugzilla.redhat.com/show_bug.cgi?id=2229498 RHSA-2023:6583 https://access.redhat.com/errata/RHSA-2023:6583 https://access.redhat.com/security/cve/CVE-2023-4194 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/344H6HO6SSC4KT7PDFXSDIXKMKHISSGF/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3TYLSJ2SAI7RF56ZLQ5CQWCJLVJSD73Q/ https://lore.kernel.org/all/20230731164237.48365-1-lersek@redhat.com/ https://lore.kernel.org/all/20230731164237.48365-2-lersek@redhat.com/ https://lore.kernel.org/all/20230731164237.48365-3-lersek@redhat.com/ https://security.netapp.com/advisory/ntap-20231027-0002/
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