SB2026033133 - Ubuntu update for systemd
Published: March 31, 2026
Security Bulletin ID
SB2026033133
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) Reachable assertion (CVE-ID: CVE-2026-29111)
CWE-ID: CWE-617 - Reachable Assertion
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion. A local user can supply specially crafted input to the IPC API call and perform a denial of service attack.
Note, on version 249 and older this call will trigger a stack-based buffer overflow instead of assertion.
Remediation
Install update from vendor's website.