XXE in GNOME libxslt

Published: 2019-04-16 11:12:14 | Updated: 2019-04-16
Severity Medium
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2019-11068
CVSSv3 4.1 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]
CWE ID CWE-264
Exploitation vector Network
Public exploit N/A
Vulnerable software libxslt
Vulnerable software versions libxslt 1.1.0
libxslt 1.1.1
libxslt 1.1.2

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Vendor URL Gnome Development Team

Security Advisory

1) Permissions, Privileges, and Access Controls

Description

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to an error within the xsltCheckRead() and xsltCheckWrite() functions when processing requests from remote servers. A remote attacker can trick the victim into opening a specially crafted URL that will result in "-1 error" code but the URL itself will be processed by the application later.

Successful exploitation of the vulnerability may allow an attacker to bypass certain security restrictions and perform XXE attacks.

Remediation

Install updates from vendor's GIT repository.

External links

https://gitlab.gnome.org/GNOME/libxslt/commit/e03553605b45c88f0b4b2980adfbbb8f6fca2fd6

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