CVE-2021-45486

In the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak because the hash table is very small.

CVSS v3.0 3.5 LOW
CVSS v2.0 2.7 LOW

3.5^/10

CVSS v3.0 : LOW

Vector :

Exploitability : 2.1 / Impact : 1.4

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

2.7^/10

CVSS v2.0 : LOW

Vector : AV:A/AC:L/Au:S/C:P/I:N/A:N

Exploitability : 5.1 / Impact : 2.9

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4	Release Notes Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/net/ipv4/route.c?id=aa6dd211e4b1dde9d5dc25d699d35f789ae7eeba	Patch Vendor Advisory
https://arxiv.org/pdf/2112.09604.pdf	Technical Description Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Information

Published : 2021-12-25 02:15

Updated : 2022-07-25 18:18

NVD link : CVE-2021-45486

Mitre link : CVE-2021-45486

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-327

Use of a Broken or Risky Cryptographic Algorithm

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