SB2017120614 - Reachable Assertion in OpenAFS OpenAFS
Published: December 6, 2017 Updated: July 17, 2020
Security Bulletin ID
SB2017120614
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Reachable Assertion (CVE-ID: CVE-2017-17432)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
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.
Remediation
Install update from vendor's website.