CVE-2024-27390

ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down()

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:

ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down()

As discussed in the past (commit 2d3916f31891 ("ipv6: fix skb drops
in igmp6_event_query() and igmp6_event_report()")) I think the
synchronize_net() call in ipv6_mc_down() is not needed.

Under load, synchronize_net() can last between 200 usec and 5 ms.

KASAN seems to agree as well.

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ipv6: mcast: elimina una barrera de sincronización_net() en ipv6_mc_down() Como se discutió en el pasado (commit 2d3916f31891 ("ipv6: corrige caídas de skb en igmp6_event_query() e igmp6_event_report()" )) Creo que la llamada sincronizar_net() en ipv6_mc_down() no es necesaria. Bajo carga, sincronizar_net() puede durar entre 200 usos y 5 ms. KASAN parece estar de acuerdo también.

*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

2024-02-25 CVE Reserved
2024-05-01 CVE Published
2024-05-02 EPSS Updated
2024-12-19 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (7)

URL	Tag	Source
https://git.kernel.org/stable/c/f185de28d9ae6c978135993769352e523ee8df06	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/9d159d6637ccce25f879d662a480541ef4ba3a50	2024-03-26
https://git.kernel.org/stable/c/a03ede2282ebbd181bd6f5c38cbfcb5765afcd04	2024-03-26
https://git.kernel.org/stable/c/26d4bac55750d535f1f0b8790dc26daf6089e373	2024-03-26
https://git.kernel.org/stable/c/7eb06ee5921189812e6b4bfe7b0f1e878be16df7	2024-03-26
https://git.kernel.org/stable/c/5da9a218340a2bc804dc4327e5804392e24a0b88	2024-03-26
https://git.kernel.org/stable/c/17ef8efc00b34918b966388b2af0993811895a8c	2024-02-12

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"				>= 5.13 < 5.15.153 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.13 < 5.15.153"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.13 < 6.1.83 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.13 < 6.1.83"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.13 < 6.6.23 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.13 < 6.6.23"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.13 < 6.7.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.13 < 6.7.11"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.13 < 6.8.2 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.13 < 6.8.2"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.13 < 6.9 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.13 < 6.9"		en		Affected