Test ID:	1.3.6.1.4.1.25623.1.0.844874
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-4884-1)
Summary:	The remote host is missing an update for the 'linux-oem-5.10' package(s) announced via the USN-4884-1 advisory.
Description:	Summary: The remote host is missing an update for the 'linux-oem-5.10' package(s) announced via the USN-4884-1 advisory. Vulnerability Insight: Loris Reiff discovered that the BPF implementation in the Linux kernel did not properly validate attributes in the getsockopt BPF hook. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2021-20194) It was discovered that the priority inheritance futex implementation in the Linux kernel contained a race condition, 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-2021-3347) It was discovered that the network block device (nbd) driver in the Linux kernel contained a use-after-free vulnerability during device setup. A local attacker with access to the nbd device could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3348) Affected Software/OS: 'linux-oem-5.10' package(s) on Ubuntu 20.04. Solution: Please install the updated package(s). CVSS Score: 7.2 CVSS Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2021-20194 https://bugzilla.redhat.com/show_bug.cgi?id=1912683 https://security.netapp.com/advisory/ntap-20210326-0003/ Common Vulnerability Exposure (CVE) ID: CVE-2021-3347 Debian Security Information: DSA-4843 (Google Search) https://www.debian.org/security/2021/dsa-4843 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CXAVDAK4RLAHBHHGEPL73UFXSI6BXQ7Q/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QOBMXDJABYE76RKNBAWA2E4TSSBX7CSJ/ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04b79c55201f02ffd675e1231d731365e335c307 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=12bb3f7f1b03d5913b3f9d4236a488aa7774dfe9 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2156ac1934166d6deb6cd0f6ffc4c1076ec63697 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=34b1a1ce1458f50ef27c54e28eb9b1947012907a https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6ccc84f917d33312eb2846bd7b567639f585ad6d https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c5cade200ab9a2a3be9e7f32a752c8d86b502ec7 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c64396cc36c6e60704ab06c1fb1c4a46179c9120 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2dac39d93987f7de1e20b3988c8685523247ae2 https://www.openwall.com/lists/oss-security/2021/01/29/1 https://www.openwall.com/lists/oss-security/2021/01/29/3 https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html http://www.openwall.com/lists/oss-security/2021/01/29/4 http://www.openwall.com/lists/oss-security/2021/01/29/5 http://www.openwall.com/lists/oss-security/2021/02/01/4 Common Vulnerability Exposure (CVE) ID: CVE-2021-3348 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b98e762e3d71e893b221f871825dc64694cfb258 https://www.openwall.com/lists/oss-security/2021/01/28/3 https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html http://www.openwall.com/lists/oss-security/2021/02/01/1
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