Resource exhaustion in OpenAFS - CVE-2018-16949
Published: January 1, 2019
Vulnerability identifier: #VU16766
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-16949
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenAFS.org
Affected software:
OpenAFS
OpenAFS
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to several data types used as RPC input variables were implemented as unbounded array types, limited only by the inherent 32-bit length field to 4 GB. A remote attacker can send, or claim to send, large input values, trigger resource exhaustion and perform a denial of service (DoS) attack.
How to mitigate CVE-2018-16949
The vulnerability has been addressed in the version 1.6.23, 1.8.2.