CVE-2022-49921

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

01/05/2025

Last modified:

01/10/2025

Description

In the Linux kernel, the following vulnerability has been resolved: net: sched: Fix use after free in red_enqueue() We can&#39;t use "skb" again after passing it to qdisc_enqueue(). This is basically identical to commit 2f09707d0c97 ("sch_sfb: Also store skb len before calling child enqueue").

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	4.4.163 (including)	4.5 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.7 (including)	4.9.333 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.14.299 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.265 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.224 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.154 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.78 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.0.8 (excluding)
cpe:2.3:o:linux:linux_kernel:6.1:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.1:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.1:rc3::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-49921

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools