CVE-2024-27396

net: gtp: Fix Use-After-Free in gtp_dellink

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:

net: gtp: Fix Use-After-Free in gtp_dellink

Since call_rcu, which is called in the hlist_for_each_entry_rcu traversal
of gtp_dellink, is not part of the RCU read critical section, it
is possible that the RCU grace period will pass during the traversal and
the key will be free.

To prevent this, it should be changed to hlist_for_each_entry_safe.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: gtp: corrige Use-After-Free en gtp_dellink Dado que call_rcu, que se llama en el recorrido hlist_for_each_entry_rcu de gtp_dellink, no forma parte de la sección crítica de lectura de RCU, es posible que el período de gracia de RCU pasará durante el recorrido y la clave quedará libre. Para evitar esto, se debe cambiar a hlist_for_each_entry_safe.

*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
2024-05-09 CVE Published
2024-05-10 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (14)

URL	Tag	Source
https://git.kernel.org/stable/c/043a283d24f40fea4c8a8d06b0e2694c8e372200	Vuln. Introduced
https://git.kernel.org/stable/c/c185e1d6e2752a4b656c3ca878c525fa11f55757	Vuln. Introduced
https://git.kernel.org/stable/c/94dc550a5062030569d4aa76e10e50c8fc001930	Vuln. Introduced
https://git.kernel.org/stable/c/a29c4303930bc0c25ae6a4f365dcdef71447b4ea	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/07b20d0a3dc13fb1adff10b60021a4924498da58	2024-05-02
https://git.kernel.org/stable/c/718df1bc226c383dd803397d7f5d95557eb81ac7	2024-05-02
https://git.kernel.org/stable/c/0caff3e6390f840666b8dc1ecebf985c2ef3f1dd	2024-05-02
https://git.kernel.org/stable/c/2e74b3fd6bf542349758f283676dff3660327c07	2024-05-02
https://git.kernel.org/stable/c/25a1c2d4b1fcf938356a9688a96a6456abd44b29	2024-05-02
https://git.kernel.org/stable/c/2aacd4de45477582993f8a8abb9505a06426bfb6	2024-05-02
https://git.kernel.org/stable/c/cd957d1716ec979d8f5bf38fc659aeb9fdaa2474	2024-05-02
https://git.kernel.org/stable/c/f2a904107ee2b647bb7794a1a82b67740d7c8a64	2024-04-24

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"				>= 4.19.93 < 4.19.313 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.19.93 < 4.19.313"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.4.8 < 5.4.275 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4.8 < 5.4.275"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.5 < 5.10.216 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.5 < 5.10.216"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.5 < 5.15.158 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.5 < 5.15.158"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.5 < 6.1.90 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.5 < 6.1.90"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.5 < 6.6.30 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.5 < 6.6.30"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.5 < 6.8.9 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.5 < 6.8.9"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.5 < 6.9 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.5 < 6.9"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				4.14.162 Search vendor "Linux" for product "Linux Kernel" and version "4.14.162"		en		Affected