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Test ID:1.3.6.1.4.1.25623.1.0.844650
Category:Ubuntu Local Security Checks
Title:Ubuntu: Security Advisory for linux (USN-4579-1)
Summary:The remote host is missing an update for the 'linux'; package(s) announced via the USN-4579-1 advisory.
Description:Summary:
The remote host is missing an update for the 'linux'
package(s) announced via the USN-4579-1 advisory.

Vulnerability Insight:
Hador Manor discovered that the DCCP protocol implementation in the Linux
kernel improperly handled socket reuse, 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-2020-16119)

Wen Xu discovered that the XFS file system in the Linux kernel did not
properly validate inode metadata in some situations. An attacker could use
this to construct a malicious XFS image that, when mounted, could cause a
denial of service (system crash). (CVE-2018-10322)

Jay Shin discovered that the ext4 file system implementation in the Linux
kernel did not properly handle directory access with broken indexing,
leading to an out-of-bounds read vulnerability. A local attacker could use
this to cause a denial of service (system crash). (CVE-2020-14314)

It was discovered that a race condition existed in the hugetlb sysctl
implementation in the Linux kernel. A privileged attacker could use this to
cause a denial of service (system crash). (CVE-2020-25285)

Affected Software/OS:
'linux' package(s) on Ubuntu 16.04 LTS.

Solution:
Please install the updated package(s).

CVSS Score:
4.9

CVSS Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2020-16119
Common Vulnerability Exposure (CVE) ID: CVE-2018-10322
Common Vulnerability Exposure (CVE) ID: CVE-2020-14314
Common Vulnerability Exposure (CVE) ID: CVE-2020-25285
CopyrightCopyright (C) 2020 Greenbone Networks GmbH

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