Ubuntu Update for linux USN-4093-1

Published: 2019-08-14 02:02:04
CVE Author: NIST National Vulnerability Database (NVD)

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

Summary:
The remote host is missing an update for the 'linux' Linux Distribution Package(s) announced via the USN-4093-1 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-10126) Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors incorrectly handle SWAPGS instructions during speculative execution. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2019-1125) It was discovered that the PowerPC dlpar implementation in the Linux kernel did not properly check for allocation errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-12614) It was discovered that a NULL pointer dereference vulnerability existed in the Near-field communication (NFC) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-12984) Jann Horn discovered a use-after-free vulnerability in the Linux kernel when accessing LDT entries in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-13233) Jann Horn discovered that the ptrace implementation in the Linux kernel did not properly record credentials in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2019-13272) It was discovered that the Marvell Wireless LAN device driver in the Linux kernel did not properly validate the BSS descriptor. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-3846)

Affected Versions:
'linux' Linux Distribution Package(s) on Ubuntu 19.04, Ubuntu 18.04 LTS.

Recommendations:
Please install the updated Linux Distribution Package(s).

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2019-10126
https://nvd.nist.gov/vuln/detail/CVE-2019-1125
https://nvd.nist.gov/vuln/detail/CVE-2019-12614
https://nvd.nist.gov/vuln/detail/CVE-2019-12984
https://nvd.nist.gov/vuln/detail/CVE-2019-13233
https://nvd.nist.gov/vuln/detail/CVE-2019-13272
https://nvd.nist.gov/vuln/detail/CVE-2019-3846

References:

https://lists.ubuntu.com/archives/ubuntu-security-announce/2019-August/005062.html

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Severity
High
CVSS Score
8.3

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