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 snakeyaml: external YAML entity injection

Synthesis of the vulnerability 

An attacker can transmit malicious YAML data to snakeyaml, in order to read a file, scan sites, or trigger a denial of service.
Vulnerable software: Fedora, DB2 UDB.
Severity of this announce: 2/4.
Creation date: 27/04/2020.
Références of this computer vulnerability: 6198380, CVE-2017-18640, FEDORA-2020-23012fafbc, VIGILANCE-VUL-32101.

Description of the vulnerability 

An attacker can transmit malicious YAML data to snakeyaml, in order to read a file, scan sites, or trigger a denial of service.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This computer threat note impacts software or systems such as Fedora, DB2 UDB.

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

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

An attacker with a expert ability can exploit this computer weakness note.

Solutions for this threat 

Fedora 31: new snakeyaml packages.
New packages are available:
  Fedora 31: snakeyaml 1.26-1.fc31

IBM DB2: patch for included libraries.
A patch for each platform for versions 11.1 and 11.5 is indicated in information sources.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides a computers vulnerabilities database. The Vigil@nce vulnerability database contains several thousand vulnerabilities.