CVE-2023-42754

2023-10-0519:15:11

Debian Security Bug Tracker

security-tracker.debian.org

cve-2023-42754

linux kernel

ipv4 stack

socket buffer

ip options compile

cap_net_admin

system crash

local user

ipvs

rerouted

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

Percentile

5.1%

JSON

A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system.

OSVersionArchitecturePackageVersionFilename
Debian12alllinux< 6.1.55-1linux_6.1.55-1_all.deb
Debian11alllinux< 5.10.197-1linux_5.10.197-1_all.deb
Debian999alllinux< 6.5.6-1linux_6.5.6-1_all.deb
Debian13alllinux< 6.5.6-1linux_6.5.6-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	linux	< 6.1.55-1	linux_6.1.55-1_all.deb
Debian	11	all	linux	< 5.10.197-1	linux_5.10.197-1_all.deb
Debian	999	all	linux	< 6.5.6-1	linux_6.5.6-1_all.deb
Debian	13	all	linux	< 6.5.6-1	linux_6.5.6-1_all.deb