CVE-2024-44985

2024-09-0420:15:07

CWE-416

416baaa9-dc9f-4396-8d5f-8c081fb06d67

web.nvd.nist.gov

linux kernel

ipv6

skb_expand_head

uaf

rcu_read_lock

CVSS3

7.8

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

EPSS

Percentile

5.1%

JSON

In the Linux kernel, the following vulnerability has been resolved:

ipv6: prevent possible UAF in ip6_xmit()

If skb_expand_head() returns NULL, skb has been freed
and the associated dst/idev could also have been freed.

We must use rcu_read_lock() to prevent a possible UAF.

Affected configurations

Nvd

Node

linuxlinux_kernelRange5.15–5.15.166

linuxlinux_kernelRange5.16–6.1.107

linuxlinux_kernelRange6.2–6.6.48

linuxlinux_kernelRange6.7–6.10.7

linuxlinux_kernelMatch6.11rc1

linuxlinux_kernelMatch6.11rc2

linuxlinux_kernelMatch6.11rc3

linuxlinux_kernelMatch6.11rc4

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linuxlinux_kernel6.11cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*
linuxlinux_kernel6.11cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*
linuxlinux_kernel6.11cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*
linuxlinux_kernel6.11cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	6.11	cpe:2.3:o:linux:linux_kernel:6.11:rc1::::::
linux	linux_kernel	6.11	cpe:2.3:o:linux:linux_kernel:6.11:rc2::::::
linux	linux_kernel	6.11	cpe:2.3:o:linux:linux_kernel:6.11:rc3::::::
linux	linux_kernel	6.11	cpe:2.3:o:linux:linux_kernel:6.11:rc4::::::