CVE-2024-35898

netfilter: nf_tables: Fix potential data-race in __nft_flowtable_type_get()

Severity Score

5.5

*CVSS v3.1

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: netfilter: nf_tables: Fix potential data-race in __nft_flowtable_type_get() nft_unregister_flowtable_type() within nf_flow_inet_module_exit() can
concurrent with __nft_flowtable_type_get() within nf_tables_newflowtable().
And thhere is not any protection when iterate over nf_tables_flowtables
list in __nft_flowtable_type_get(). Therefore, there is pertential
data-race of nf_tables_flowtables list entry. Use list_for_each_entry_rcu() to iterate over nf_tables_flowtables list
in __nft_flowtable_type_get(), and use rcu_read_lock() in the caller
nft_flowtable_type_get() to protect the entire type query process.

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: netfilter: nf_tables: corrige una posible ejecución de datos en __nft_flowtable_type_get() nft_unregister_flowtable_type() dentro de nf_flow_inet_module_exit() puede coincidir con __nft_flowtable_type_get() dentro de nf_tables_newflowtable(). Y no hay ninguna protección cuando se itera sobre la lista nf_tables_flowtables en __nft_flowtable_type_get(). Por lo tanto, existe una posible ejecución de datos de la entrada de la lista nf_tables_flowtables. Utilice list_for_each_entry_rcu() para iterar sobre la lista nf_tables_flowtables en __nft_flowtable_type_get() y utilice rcu_read_lock() en el llamador nft_flowtable_type_get() para proteger todo el proceso de consulta de tipos.

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix potential data-race in __nft_flowtable_type_get() nft_unregister_flowtable_type() within nf_flow_inet_module_exit() can concurrent with __nft_flowtable_type_get() within nf_tables_newflowtable(). And thhere is not any protection when iterate over nf_tables_flowtables list in __nft_flowtable_type_get(). Therefore, there is pertential data-race of nf_tables_flowtables list entry. Use list_for_each_entry_rcu() to iterate over nf_tables_flowtables list in __nft_flowtable_type_get(), and use rcu_read_lock() in the caller nft_flowtable_type_get() to protect the entire type query process.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-05-17 CVE Reserved
2024-05-19 CVE Published
2024-05-20 EPSS Updated
2024-12-19 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (13)

URL	Tag	Source
https://git.kernel.org/stable/c/3b49e2e94e6ebb8b23d0955d9e898254455734f8	Vuln. Introduced
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/69d1fe14a680042ec913f22196b58e2c8ff1b007	2024-04-13
https://git.kernel.org/stable/c/a347bc8e6251eaee4b619da28020641eb5b0dd77	2024-04-13
https://git.kernel.org/stable/c/940d41caa71f0d3a52df2fde5fada524a993e331	2024-04-13
https://git.kernel.org/stable/c/2485bcfe05ee3cf9ca8923a94fa2e456924c79c8	2024-04-10
https://git.kernel.org/stable/c/9b5b7708ec2be21dd7ef8ca0e3abe4ae9f3b083b	2024-04-10
https://git.kernel.org/stable/c/8b891153b2e4dc0ca9d9dab8f619d49c740813df	2024-04-10
https://git.kernel.org/stable/c/e684b1674fd1ca4361812a491242ae871d6b2859	2024-04-10
https://git.kernel.org/stable/c/24225011d81b471acc0e1e315b7d9905459a6304	2024-04-04

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2024-35898	2024-11-05
https://bugzilla.redhat.com/show_bug.cgi?id=2281669	2024-11-05

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"				>= 4.16 < 4.19.312 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 4.19.312"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.16 < 5.4.274 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 5.4.274"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.16 < 5.10.215 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 5.10.215"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.16 < 5.15.154 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 5.15.154"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.16 < 6.1.85 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 6.1.85"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.16 < 6.6.26 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 6.6.26"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.16 < 6.8.5 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 6.8.5"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.16 < 6.9 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 6.9"		en		Affected