CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
Low
Security Advisory Description
A use-after-free vulnerability in the Linux kernel’s net/sched: sch_qfq component can be exploited to achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue(). We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8. (CVE-2023-4921)
Impact
This vulnerability may allow an authenticated attacker with local access to escalate their privileges on the system.
Vendor | Product | Version | CPE |
---|---|---|---|
f5 | big-ip_next_central_manager | 20.2.0 | cpe:2.3:a:f5:big-ip_next_central_manager:20.2.0:*:*:*:*:*:*:* |
f5 | big-ip_next_central_manager | 20.2.1 | cpe:2.3:a:f5:big-ip_next_central_manager:20.2.1:*:*:*:*:*:*:* |
f5 | big-ip_next | 1.1.0 | cpe:2.3:a:f5:big-ip_next:1.1.0:*:*:*:*:*:*:* |
f5 | big-ip_next | 1.1.1 | cpe:2.3:a:f5:big-ip_next:1.1.1:*:*:*:*:*:*:* |
f5 | big-ip_next | 1.2.0 | cpe:2.3:a:f5:big-ip_next:1.2.0:*:*:*:*:*:*:* |
f5 | big-ip_next | 1.2.1 | cpe:2.3:a:f5:big-ip_next:1.2.1:*:*:*:*:*:*:* |
f5 | big-ip_next | 1.3.0 | cpe:2.3:a:f5:big-ip_next:1.3.0:*:*:*:*:*:*:* |
f5 | big-ip_next | 1.3.1 | cpe:2.3:a:f5:big-ip_next:1.3.1:*:*:*:*:*:*:* |
f5 | big-ip_dns | 1.1.0 | cpe:2.3:a:f5:big-ip_dns:1.1.0:*:*:*:*:*:*:* |
f5 | big-ip_dns | 1.1.1 | cpe:2.3:a:f5:big-ip_dns:1.1.1:*:*:*:*:*:*:* |