Vulnerability
Red Hat Polkit Out-of-Bounds Read and Write Vulnerability
The Red Hat polkit pkexec utility contains an out-of-bounds read and write vulnerability that allows for privilege escalation with administrative rights.
Apply updates per vendor instructions.
CISA description: “The Red Hat polkit pkexec utility contains an out-of-bounds read and write vulnerability that allows for privilege escalation with administrative rights.”
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HStatistically about to be weaponized — top-tier triage urgency.
No VEX statements published for CVE-2021-4034. Vendors publish VEX (Vulnerability Exploitability eXchange) to assert per-product whether a CVE is actually exploitable in their distribution.
Active exploitation with total impact on essential/support systems