SB2026012655 - SUSE update for qemu 

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Main Vulnerability Database SB2026012655

SB2026012655 - SUSE update for qemu

Published: January 26, 2026

Security Bulletin ID SB2026012655
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) Use-after-free (CVE-ID: CVE-2025-11234)

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

The vulnerability exists due to a use-after-free error in websocket handshake code in /io/channel-websock.c. A remote attacker with network access to the VNC WebSocket port can perform a denial of service during the WebSocket handshake prior to the VNC client authentication.


2) Stack-based buffer overflow (CVE-ID: CVE-2025-12464)

The vulnerability allows a local user to perform a denial of service attack.

The vulnerability exists due to a boundary error within the e1000_receive_iov() function. A local user or malicious guest can send a short frame in loopback mode, trigger a stack-based buffer overflow and perform a denial of service attack. 


Remediation

Install update from vendor's website.

References