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 Mercurial: directory traversal

Synthesis of the vulnerability 

An attacker can traverse directories of Mercurial, in order to read or wtite to a file outside the service root path.
Vulnerable systems: Debian, openSUSE Leap, Solaris, SLES, Ubuntu.
Severity of this threat: 2/4.
Creation date: 26/04/2019.
Références of this weakness: bulletinoct2019, CVE-2019-3902, DLA-1764-1, DLA-2293-1, openSUSE-SU-2020:0869-1, openSUSE-SU-2020:0880-1, SUSE-SU-2020:1709-1, USN-4086-1, VIGILANCE-VUL-29138.

Description of the vulnerability 

An attacker can traverse directories of Mercurial, in order to read or wtite to a file outside the service root path.
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This threat announce impacts software or systems such as Debian, openSUSE Leap, Solaris, SLES, Ubuntu.

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

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

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

Solutions for this threat 

Debian 9: new mercurial packages.
New packages are available:
  Debian 9: mercurial 4.0-1+deb9u2

Debian: new mercurial packages.
New packages are available:
  Debian 8: mercurial 3.1.2-2+deb8u7

openSUSE Leap 15.1: new mercurial packages.
New packages are available:
  openSUSE Leap 15.1: mercurial 4.5.2-lp151.6.3.1

openSUSE Leap 15.2: new mercurial packages.
New packages are available:
  openSUSE Leap 15.2: mercurial 4.5.2-lp152.7.3.1

Oracle Solaris: patch for third party software of October 2019 v1.
A patch is available:
  https://support.oracle.com/rs?type=doc&id=1448883.1

SUSE LE 15 SP1: new mercurial packages.
New packages are available:
  SUSE LE 15 SP1: mercurial 4.5.2-3.9.44

Ubuntu 19.04: new mercurial packages.
New packages are available:
  Ubuntu 19.04: mercurial 4.8.2-1ubuntu3.19.04.1

Wind River Linux: solution (21/05/2019).
The solution is indicated in information sources.
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