SB2023012405 - Multiple vulnerabilities in cmark-gfm

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Main Vulnerability Database SB2023012405

SB2023012405 - Multiple vulnerabilities in cmark-gfm

Published: January 24, 2023

Security Bulletin ID SB2023012405
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Inefficient Algorithmic Complexity (CVE-ID: CVE-2023-22486)

CWE-ID: CWE-407 - Inefficient Algorithmic Complexity

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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

The vulnerability exists due to a polynomial time complexity issue in cmark-gfm in handle_close_bracket. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


2) Inefficient Algorithmic Complexity (CVE-ID: CVE-2023-22484)

CWE-ID: CWE-407 - Inefficient Algorithmic Complexity

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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

The vulnerability exists due to a polynomial time complexity issue in cmark-gfm may in handle_pointy_brace. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


3) Inefficient Algorithmic Complexity (CVE-ID: CVE-2023-22483)

CWE-ID: CWE-407 - Inefficient Algorithmic Complexity

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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

The vulnerability exists due to several polynomial time complexity issues. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


4) Out-of-bounds read (CVE-ID: CVE-2023-22485)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in validate_protocol function. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.


Remediation

Install update from vendor's website.

References