The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a database and tools to fix them.

vulnerability announce CVE-2017-18551

Linux kernel: buffer overflow via i2c_smbus_xfer_emulated

Synthesis of the vulnerability

An attacker can trigger a buffer overflow via i2c_smbus_xfer_emulated() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Severity of this computer vulnerability: 2/4.
Creation date: 05/09/2019.
Références of this announce: CERTFR-2019-AVI-455, CERTFR-2019-AVI-502, CERTFR-2019-AVI-503, CERTFR-2019-AVI-530, CERTFR-2019-AVI-561, CVE-2017-18551, K48073202, openSUSE-SU-2019:2173-1, openSUSE-SU-2019:2181-1, SUSE-SU-2019:14218-1, SUSE-SU-2019:2299-1, SUSE-SU-2019:2412-1, SUSE-SU-2019:2424-1, SUSE-SU-2019:2648-1, SUSE-SU-2019:2651-1, SUSE-SU-2019:2658-1, SUSE-SU-2019:2738-1, SUSE-SU-2019:2949-1, SUSE-SU-2019:2950-1, VIGILANCE-VUL-30250.
Full Vigil@nce bulletin... (Free trial)

Description of the vulnerability

An attacker can trigger a buffer overflow via i2c_smbus_xfer_emulated() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Full Vigil@nce bulletin... (Free trial)

This cybersecurity threat impacts software or systems such as BIG-IP Hardware, TMOS, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.

Our Vigil@nce team determined that the severity of this computer threat note is medium.

The trust level is of type confirmed by the editor, with an origin of user shell.

An attacker with a expert ability can exploit this security threat.

Solutions for this threat

Linux kernel: version 4.14.15.
The version 4.14.15 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.14.15.tar.xz

Linux kernel: version 4.9.78.
The version 4.9.78 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.9.78.tar.xz

Linux kernel: patch for i2c_smbus_xfer_emulated.
A patch is indicated in information sources.

F5 BIG-IP: solution for Linux CVE-2017-18551.
The solution is indicated in information sources.

openSUSE Leap 15: new kernel packages.
New packages are available:
  openSUSE Leap 15.0: kernel 4.12.14-lp150.12.73.1
  openSUSE Leap 15.1: kernel 4.12.14-lp151.28.16.1

SUSE LE 11 SP4: new kernel packages.
New packages are available:
  SUSE LE 11 SP4: kernel 3.0.101-108.108.1

SUSE LE 12 SP1: new kernel packages (13/11/2019).
New packages are available:
  SUSE LE 12 SP1: kernel 3.12.74-60.64.124.1

SUSE LE 12 SP2: new kernel packages.
New packages are available:
  SUSE LE 12 SP2: kernel 4.4.121-92.120.1

SUSE LE 12 SP3: new kernel packages.
New packages are available:
  SUSE LE 12 SP3: kernel 4.4.180-94.107.1

SUSE LE 12 SP4: new kernel-azure packages.
New packages are available:
  SUSE LE 12 SP4: kernel-azure 4.12.14-6.26.1

SUSE LE 12 SP4: new kernel-default packages.
New packages are available:
  SUSE LE 12 SP4: kernel-default 4.12.14-95.32.1

SUSE LE 15: new kernel-azure packages.
New packages are available:
  SUSE LE 15 RTM: kernel-azure 4.12.14-5.41.1
  SUSE LE 15 SP1: kernel-azure 4.12.14-8.16.1

SUSE LE 15 SP1: new kernel-default packages.
New packages are available:
  SUSE LE 15 SP1: kernel-default 4.12.14-197.18.1

SUSE LE 15 SP1: new kernel-rt packages.
New packages are available:
  SUSE LE 15 SP1: kernel-rt 4.12.14-14.11.1
Full Vigil@nce bulletin... (Free trial)

Computer vulnerabilities tracking service

Vigil@nce provides a network vulnerability database. The Vigil@nce security watch publishes vulnerability bulletins about threats impacting the information system. The Vigil@nce computer vulnerability tracking service alerts your teams of vulnerabilities or threats impacting your information system. The technology watch team tracks security threats targeting the computer system.