SB2026063087 - Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.22
Published: June 30, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Always-Incorrect Control Flow Implementation (CVE-ID: CVE-2026-42009)
CWE-ID: CWE-670 - Always-Incorrect Control Flow Implementation
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 cause a denial of service.
The vulnerability exists due to improper implementation of a qsort comparator contract in the DTLS packet sequence number comparator when ordering DTLS packets by sequence numbers. A remote attacker can send DTLS packets with duplicate sequence numbers to cause a denial of service.
2) Out-of-bounds write (CVE-ID: CVE-2026-46331)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to cause memory corruption.
The vulnerability exists due to an out-of-bounds write in tcf_pedit_act() when processing packet edit actions with typed keys and runtime header offsets. A local user can supply crafted pedit parameters that cause writes to a region that has not been properly copy-on-written to cause memory corruption.
The issue can involve negative offsets such as Ethernet header edits at ingress.
Remediation
Install update from vendor's website.