Vulnerability of buildah: file overwrite

Synthesis of the vulnerability

An attacker can make buildah process a tar archive, in order to make it overwrite files.

Impacted software: openSUSE Leap, RHEL, SLES.

Severity of this computer vulnerability: 3/4.

Creation date: 29/04/2020.

Références of this announce: CVE-2020-10696, openSUSE-SU-2020:2106-1, openSUSE-SU-2021:0310-1, RHSA-2020:1926-01, RHSA-2020:1931-01, RHSA-2020:1932-01, RHSA-2020:2116-01, RHSA-2020:2117-01, SUSE-SU-2020:3423-1, VIGILANCE-VUL-32128.

Description of the vulnerability

An attacker can make buildah process a tar archive, in order to make it overwrite files.
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This computer vulnerability impacts software or systems such as openSUSE Leap, RHEL, SLES.

Our Vigil@nce team determined that the severity of this weakness bulletin is important.

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

An attacker with a expert ability can exploit this weakness.

Solutions for this threat

openSUSE Leap 15.1: new buildah packages (30/11/2020).
New packages are available:
openSUSE Leap 15.1: buildah 1.17.0-lp151.2.6.1

openSUSE Leap 15.2: new buildah, libcontainers-common, podman packages.
New packages are available:
openSUSE Leap 15.2: libcontainers-common 20210112-lp152.2.6.1, buildah 1.19.2-lp152.2.3.1, podman 2.2.1-lp152.4.9.1

RHEL 7.8: new buildah packages.
New packages are available:
RHEL 7.8: buildah 1.11.6-11.el7_8

RHEL 7: new podman packages.
New packages are available:
RHEL 7.8: podman 1.6.4-18.el7_8

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

SUSE LE 15 SP1-2: new buildah packages.
New packages are available:
SUSE LE 15 SP1: buildah 1.17.0-3.6.1
SUSE LE 15 SP2: buildah 1.17.0-3.6.1
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