CVE-2017-17432 Information

Description

OpenAFS 1.x before 1.6.22 does not properly validate Rx ack packets which allows remote attackers to cause a denial of service (system crash or application crash) via crafted fields as demonstrated by an integer underflow and assertion failure for a small MTU value.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://bugs.debian.org/883602 https://lists.debian.org/debian-lts-announce/2017/12/msg00016.html https://www.debian.org/security/2017/dsa-4067 https://www.openafs.org/pages/security/OPENAFS-SA-2017-001.txt

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5