Ubuntu 16.04 LTS : Linux kernel (Azure) vulnerabilities (USN-3678-2)
medium Nessus Plugin ID 110481
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Synopsis
The remote Ubuntu host is missing one or more security-related patches.Description
Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations.An attacker could use this to specially craft an ext4 file system that caused a denial of service (system crash) when mounted.
(CVE-2018-1092)
It was discovered that the 802.11 software simulator implementation in the Linux kernel contained a memory leak when handling certain error conditions. A local attacker could possibly use this to cause a denial of service (memory exhaustion). (CVE-2018-8087)
It was discovered that a memory leak existed in the Serial Attached SCSI (SAS) implementation in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-10021).
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Update the affected linux-image-4.15-azure and / or linux-image-azure packages.See Also
Plugin Details
Severity: Medium
ID: 110481
File Name: ubuntu_USN-3678-2.nasl
Version: 1.7
Type: local
Agent: unix
Family: Ubuntu Local Security Checks
Published: 6/12/2018
Updated: 9/17/2020
Dependencies: ssh_get_info.nasl, linux_alt_patch_detect.nasl
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: High
Base Score: 7.1
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C
CVSS v3
Risk Factor: Medium
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vulnerability Information
CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-azure, cpe:/o:canonical:ubuntu_linux:16.04
Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l
Patch Publication Date: 6/12/2018
Vulnerability Publication Date: 3/13/2018
Reference Information
USN: 3678-2