USN-3697-1: Linux kernel vulnerabilities

Published Jul 2, 2018
·
Updated

It was discovered that a null pointer dereference vulnerability existed in the DCCP protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-1130) Jann Horn discovered that the 32 bit adjtimex() syscall implementation for 64 bit Linux kernels did not properly initialize memory returned to user space in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-11508) Wang Qize discovered that an information disclosure vulnerability existed in the SMBus driver for ACPI Embedded Controllers in the Linux kernel. A local attacker could use this to expose sensitive information (kernel pointer addresses). (CVE-2018-5750) It was discovered that the SCTP Protocol implementation in the Linux kernel did not properly validate userspace provided payload lengths in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-5803) It was discovered that an integer overflow error existed in the futex implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-6927) It was discovered that an information leak vulnerability existed in the floppy driver in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-7755) It was discovered that a memory leak existed in the SAS driver subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2018-7757)

Affected Software

17 affected componentsFixes available
Canonical Linux kernel
All of the following
ubuntu/linux-image-generic<4.13.0.46.49
4.13.0.46.49
Ubuntu Ubuntu=17.10
All of the following
ubuntu/linux-image-generic-lpae<4.13.0.46.49
4.13.0.46.49
Ubuntu Ubuntu=17.10
All of the following
ubuntu/linux-image-4.13.0-1023-raspi2<4.13.0-1023.24
4.13.0-1023.24
Ubuntu Ubuntu=17.10
All of the following
ubuntu/linux-image-4.13.0-46-generic<4.13.0-46.51
4.13.0-46.51
Ubuntu Ubuntu=17.10
All of the following
ubuntu/linux-image-4.13.0-46-generic-lpae<4.13.0-46.51
4.13.0-46.51
Ubuntu Ubuntu=17.10
All of the following
ubuntu/linux-image-lowlatency<4.13.0.46.49
4.13.0.46.49
Ubuntu Ubuntu=17.10
All of the following
ubuntu/linux-image-raspi2<4.13.0.1023.21
4.13.0.1023.21
Ubuntu Ubuntu=17.10
All of the following
ubuntu/linux-image-4.13.0-46-lowlatency<4.13.0-46.51
4.13.0-46.51
Ubuntu Ubuntu=17.10

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/linux-image-generic to a version that resolves this vulnerability.

    Fixed in 4.13.0.46.49
  2. Upgrade

    Upgrade ubuntu/linux-image-generic-lpae to a version that resolves this vulnerability.

    Fixed in 4.13.0.46.49
  3. Upgrade

    Upgrade ubuntu/linux-image-4.13.0-1023-raspi2 to a version that resolves this vulnerability.

    Fixed in 4.13.0-1023.24
  4. Upgrade

    Upgrade ubuntu/linux-image-4.13.0-46-generic to a version that resolves this vulnerability.

    Fixed in 4.13.0-46.51
  5. Upgrade

    Upgrade ubuntu/linux-image-4.13.0-46-generic-lpae to a version that resolves this vulnerability.

    Fixed in 4.13.0-46.51
  6. Upgrade

    Upgrade ubuntu/linux-image-lowlatency to a version that resolves this vulnerability.

    Fixed in 4.13.0.46.49
  7. Upgrade

    Upgrade ubuntu/linux-image-raspi2 to a version that resolves this vulnerability.

    Fixed in 4.13.0.1023.21
  8. Upgrade

    Upgrade ubuntu/linux-image-4.13.0-46-lowlatency to a version that resolves this vulnerability.

    Fixed in 4.13.0-46.51

Event History

Jul 2, 2018
Advisory Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
DescriptionAffected Software

Frequently Asked Questions

1

What is the vulnerability ID for this issue?

The vulnerability ID for this issue is CVE-2018-1130.

2

What is the severity of CVE-2018-1130?

The severity of CVE-2018-1130 is not specified.

3

What is the affected software version?

The affected software version is Linux kernel 4.13.0-46-generic.

4

How does CVE-2018-1130 impact the system?

CVE-2018-1130 can be used by a local attacker to cause a denial of service (system crash) on the Linux kernel.

5

How can I fix the CVE-2018-1130 vulnerability?

To fix the CVE-2018-1130 vulnerability, upgrade to Linux kernel version 4.13.0.46.49 or higher.

Contact

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