SB2026030526 - openEuler 24.03 LTS SP3 update for qemu
Published: March 5, 2026
Security Bulletin ID
SB2026030526
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Off-by-one (CVE-ID: CVE-2026-0665)
CWE-ID: CWE-193 - Off-by-one Error
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:H/E:U/U:Clear
The vulnerability allows a malicious guest to perform a denial of service attack.
The vulnerability exists due to an off-by-one error within the KVM Xen guest support in hw/i386/kvm/xen_evtchn.c. A malicious guest can trigger an off-by-one error and perform a denial of service attack.
Remediation
Install update from vendor's website.