In the Linux kernel before 5.3.4, a reference count usage... · CVE-2019-18198 · GitHub Advisory Database · GitHub

In the Linux kernel before 5.3.4, a reference count usage...

High severity Unreviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Jan 20, 2023

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

In the Linux kernel before 5.3.4, a reference count usage error in the fib6_rule_suppress() function in the fib6 suppression feature of net/ipv6/fib6_rules.c, when handling the FIB_LOOKUP_NOREF flag, can be exploited by a local attacker to corrupt memory, aka CID-ca7a03c41753.

References

Published by the National Vulnerability Database

Oct 18, 2019

Published to the GitHub Advisory Database May 24, 2022

Last updated Jan 20, 2023

Severity

High

7.8

/ 10

CVSS base metrics

Attack vector

Local

Attack complexity

Low

Privileges required

Low

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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