CVE-2017-17432: Debian Linux

High severity, CVSS 7.5. EPSS: 3.1% chance of exploitation in the next 30 days.

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.

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only
• Openafs Openafs: from 1.0, before 1.6.22 (fixed in 1.6.22)

Published 2017-12-06. Last modified 2026-06-17.