SB2025091831 - Ubuntu update for libyang2

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Main Vulnerability Database SB2025091831

SB2025091831 - Ubuntu update for libyang2

Published: September 18, 2025

Security Bulletin ID SB2025091831
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
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 2 secuirty vulnerabilities.


1) NULL pointer dereference (CVE-ID: CVE-2023-26917)

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

The vulnerability exists due to a NULL pointer dereference error within the lysp_stmt_validate_value() function in lys_parse_mem.c. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.


2) NULL pointer dereference (CVE-ID: CVE-2023-26916)

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

The vulnerability exists due to a NULL pointer dereference error within the lys_parse_mem() function in lys_parse_mem.c. A remote attacker can perform a denial of service attack.


Remediation

Install update from vendor's website.

References