CVE-2021-45485 Information

Description

In the IPv6 implementation in the Linux kernel before 5.13.3 net/ipv6/output_core.c has an information leak because of certain use of a hash table which although big doesn’t properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3 https://arxiv.org/pdf/2112.09604.pdf https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=62f20e068ccc50d6ab66fdb72ba90da2b9418c99 https://security.netapp.com/advisory/ntap-20220121-0001/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5