SB20231123115 - Fedora 40 update for rubygem-loofah

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Main Vulnerability Database SB20231123115

SB20231123115 - Fedora 40 update for rubygem-loofah

Published: November 23, 2023

Security Bulletin ID SB20231123115
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Uncontrolled Recursion (CVE-ID: CVE-2022-23516)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to uncontrolled recursion when handling CDATA sections. A remote attacker can pass specially crafted data to the application and consume excessive CPU resources.


2) Cross-site scripting (CVE-ID: CVE-2022-23515)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data passed via the image/svg+xml media type in data URIs. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


Remediation

Install update from vendor's website.

References