CVE-2023-52746

xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()

Severity Score

"-"

*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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

xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()

int type = nla_type(nla);

if (type > XFRMA_MAX) {
return -EOPNOTSUPP;
}

@type is then used as an array index and can be used
as a Spectre v1 gadget.

if (nla_len(nla) < compat_policy[type].len) {

array_index_nospec() can be used to prevent leaking
content of kernel memory to malicious users.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: xfrm/compat: previene el posible gadget spectre v1 en xfrm_xlate32_attr() int type = nla_type(nla); if (tipo > XFRMA_MAX) { return -EOPNOTSUPP; } @type luego se usa como índice de matriz y se puede usar como un gadget Spectre v1. if (nla_len(nla) < compat_policy[type].len) { array_index_nospec() se puede utilizar para evitar la filtración de contenido de la memoria del kernel a usuarios malintencionados.

*Credits: N/A

CVSS Scores

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-05-21 CVE Reserved
2024-05-21 CVE Published
2024-05-22 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (5)

URL	Tag	Source
https://git.kernel.org/stable/c/5106f4a8acff480e244300bc5097c0ad7048c3a2	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/a893cc644812728e86e9aff517fd5698812ecef0	2023-02-15
https://git.kernel.org/stable/c/5dc688fae6b7be9dbbf5304a3d2520d038e06db5	2023-02-14
https://git.kernel.org/stable/c/419674224390fca298020fc0751a20812f84b12d	2023-02-14
https://git.kernel.org/stable/c/b6ee896385380aa621102e8ea402ba12db1cabff	2023-01-23

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.10 < 5.10.168 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 5.10.168"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.10 < 5.15.94 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 5.15.94"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.10 < 6.1.12 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 6.1.12"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.10 < 6.2 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 6.2"		en		Affected