CVE-2024-35857

In the Linux kernel, the following vulnerability has been resolved: icmp: prevent possible NULL dereferences from icmp_build_probe() First problem is a double call to __in_dev_get_rcu(), because the second one could return NULL. if (__in_dev_get_rcu(dev) && __in_dev_get_rcu(dev)->ifa_list) Second problem is a read from dev->ip6_ptr with no NULL check: if (!list_empty(&rcu_dereference(dev->ip6_ptr)->addr_list)) Use the correct RCU API to fix these. v2: add missing include <net/addrconf.h>

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/23b7ee4a8d559bf38eac7ce5bb2f6ebf76f9c401
https://git.kernel.org/stable/c/3e2979bf080c40da4f7c93aff8575ab8bc62b767
https://git.kernel.org/stable/c/599c9ad5e1d43f5c12d869f5fd406ba5d8c55270
https://git.kernel.org/stable/c/c58e88d49097bd12dfcfef4f075b43f5d5830941
https://git.kernel.org/stable/c/d68dc711d84fdcf698e5d45308c3ddeede586350

Configurations

No configuration.

History

07 Nov 2024, 22:35

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: icmp: evita posibles desreferencias a NULL por parte de icmp_build_probe(). El primer problema es una doble llamada a __in_dev_get_rcu(), porque la segunda podría devolver NULL. if (__in_dev_get_rcu(dev) && __in_dev_get_rcu(dev)->ifa_list) El segundo problema es una lectura de dev->ip6_ptr sin verificación NULL: if (!list_empty(&rcu_dereference(dev->ip6_ptr)->addr_list)) Use el correcto API de RCU para solucionarlos. v2: agregar falta incluir
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.3
CWE		CWE-476

17 May 2024, 15:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-05-17 15:15

Updated : 2024-11-07 22:35

NVD link : CVE-2024-35857

Mitre link : CVE-2024-35857

CVE.ORG link : CVE-2024-35857

JSON object : View

Products Affected

No product.

CWE

CWE-476

NULL Pointer Dereference

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