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

Vulnerability of libslirp: out-of-bounds memory reading via icmp6_send_echoreply

Synthesis of the vulnerability 

An attacker can force a read at an invalid address via icmp6_send_echoreply() of libslirp, in order to trigger a denial of service, or to obtain sensitive information.
Vulnerable products: Debian, openSUSE Leap, QEMU, RHEL, Ubuntu, Unix (platform) ~ not comprehensive.
Severity of this weakness: 2/4.
Creation date: 20/07/2020.
Références of this bulletin: CVE-2020-10756, DLA-2288-1, DSA-4728-1, openSUSE-SU-2020:0987-1, openSUSE-SU-2020:0994-1, RHSA-2020:3586-01, RHSA-2020:4059-01, RHSA-2020:4694-01, USN-4437-1, USN-4467-1, VIGILANCE-VUL-32868, ZDI-20-1005.

Description of the vulnerability 

An attacker can force a read at an invalid address via icmp6_send_echoreply() of libslirp, in order to trigger a denial of service, or to obtain sensitive information.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This vulnerability alert impacts software or systems such as Debian, openSUSE Leap, QEMU, RHEL, Ubuntu, Unix (platform) ~ not comprehensive.

Our Vigil@nce team determined that the severity of this computer weakness alert is medium.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this computer vulnerability.

Solutions for this threat 

libslirp: patch for icmp6_send_echoreply.
A patch is indicated in information sources.

Debian 10: new qemu packages.
New packages are available:
  Debian 10: qemu 1:3.1+dfsg-8+deb10u6

Debian 9: new qemu packages.
New packages are available:
  Debian 9: qemu 1:2.8+dfsg-6+deb9u10

openSUSE Leap 15.1: new slirp4netns packages.
New packages are available:
  openSUSE Leap 15.1: slirp4netns 0.4.7-lp151.2.12.1

openSUSE Leap 15.2: new slirp4netns packages.
New packages are available:
  openSUSE Leap 15.2: slirp4netns 0.4.7-lp152.2.3.1

RHEL 8.2: new virt-8.2 module.
The following module is updated:
  RHEL 8.2 Module: virt:8.2

RHEL 8: new container-tools-rhel8 module.
The following module is updated:
  RHEL 8 Module: container-tools:rhel8

RHEL 8: new virt-rhel module.
The following module is updated:
  RHEL 8 Module: virt:rhel

Ubuntu: new libslirp packages.
New packages are available:
  Ubuntu 20.04 LTS: libslirp0 4.1.0-2ubuntu2.1

Ubuntu: new qemu packages.
New packages are available:
  Ubuntu 20.04 LTS: qemu 1:4.2-3ubuntu6.4
  Ubuntu 18.04 LTS: qemu 1:2.11+dfsg-1ubuntu7.31
  Ubuntu 16.04 LTS: qemu 1:2.5+dfsg-5ubuntu10.45
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides a computer security bulletin. The Vigil@nce vulnerability database contains several thousand vulnerabilities.