216.73.217.19

CVE-2024-49936

· Published 21/10/2024 18:15 · Modified 25/10/2024 15:16

Labels: CVE-2024-49936 2024-10-21416baaa9-dc9f-4396-8d5f-8c081fb06d67CVE-2024-49936CWE-416

Essential information

Published
21/10/2024 18:15
Modified
25/10/2024 15:16
Author
—
Creator
—
CVSS
7.8 HIGH (v3.1)
CISA KEV
No
CWE
—
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS metrics

Description

In the Linux kernel, the following vulnerability has been resolved: net/xen-netback: prevent UAF in xenvif_flush_hash() During the list_for_each_entry_rcu iteration call of xenvif_flush_hash, kfree_rcu does not exist inside the rcu read critical section, so if kfree_rcu is called when the rcu grace period ends during the iteration, UAF occurs when accessing head->next after the entry becomes free. Therefore, to solve this, you need to change it to list_for_each_entry_safe.

NVD status

Status
Analyzed — CVE has been recently published to the CVE List and has been received by the NVD.
Source
416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD
View on NVD

Affected products (CPE)

ProductCPE
linux / linux kernel cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux / linux kernel cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux / linux kernel cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux / linux kernel cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux / linux kernel cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux / linux kernel cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

References